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Jannik Sinner & Carlos Alcaraz - A Technical Discussion

3.9K views 52 replies 20 participants last post by  BurnsTennis  
#1 · (Edited)
I think it is a perfect time to do this. The season officially over and we can take stock. Also, I have never looked at two players at the same time but these are rivals, trying to take the top spot. It's worth doing this to see who has the edge going forward over the next twelve months.

I will try to keep the categories relatively short. You can add your own views

Alcaraz Serve:

The jury is still out in my opinion. I have been watching Intuitive Tennis on YouTube and coach Nick claims Alcaraz has improved his serve this year.

Initially, we got excited by his Wimbledon final serving performance. Where he hit some serves around 135mph and recorded the fastest serve of the tournament. However, that has kind of worn off and people are not looking at his serve as a weapon. According to the ATP website, his serving stats are quite good but he’s only hit 254 aces.

I still think Alcaraz’s serve is not world class level. For a legitimate shotmaker, his serve is more Andre Agassi than Roger Federer.

Sinner serve:

The most improved shot in tennis? What a shot it’s becoming!

Break point down? Hits a big serve or ace. Recently starting to show off hitting aces on set points and match points. Not many players can do that, you hardly see it.

Andy Roddick said in 2021 Sinner’s serve lacks the "Sampras tail". Meaning the ball was going straight, and was not swinging away after pitching. He might not get the Sampras swing but his serve is definitely doing much more damage than before. His aces down the middle on the ad court are superb. It bends away from the opponent, which is old school. Most players stand further from the centre line and the ball angles into the forehand, not away from the forehand.

Sinner, by the way hit 527 aces this year.

Alcaraz return of serve:

This one is very interesting. Alcaraz’s return stats are always very good. He breaks a lot it seems. He won 32% of his return games this year. That is in the category of Djokovic, Nadal, Murray and, Agassi before that.

In Alcaraz’s case, his movement is probably the reason he breaks so often. Once he gets the ball in play, very difficult to put him away.

Sinner return of serve.

Sinner doesn’t seem to break as often as Alcaraz. In fact, this year he won 28% of return games won, which is very good. But that is not quite in the counterpuncher specialist baseliner catergory. That is more in the all court player who relies on their serve category. Federer’s whole career was 27%. Sampras and Becker 24%. Those guys rely on their serve first and foremost.

I wonder if Sinner will settle on that or if he will aim for the 30% benchmark? That would make him unbeatable. So far in his career, Sinner has yet to hit 30% return games won in any year

Incidentally, Sampras best return year was 1994 when he won 29% of his return games.

Like the all court players mentioned, Sinner is very good at getting returns deep and so he could dictate the rallies. He is different because he is a two hander, so no chipping returns for him. But today, I saw a backhand return down the line winner!

I want to see more of that! I love seeing backhand down the line return winners. A shot that disappeared from the game.

Alcaraz forehand

Coach Nick on Intuitive Tennis put his forehand in the top five greatest of all time. I responded by saying I think he’s gone too early. It is a great forehand no question. However, I am not getting the impression this year it is rock solid. During the hardcourt and indoor season it probably had a bit too much spin and loop and not enough penetration. My mind is drawn to spectacular moments. But what about the humdrum run of the mill stuff? That is probably more important than the spectacular moments. Humdrum makes a career.

Sinner forehand

Another shot which has come on leaps and bounds. The footwork is probably the most impressive thing. The way he is running around the backhand to hit forehands inside out then inside in is superb, as the opponent does not know what is coming next and hence is flat footed.

Like Medvedev, not a whole heap of topspin and he hits is relatively low over the net. It is what Medvedev could have been if Medvedev was willing to step in more often, instead of retreating to the back fence and trying to kill his body.

Alcaraz backhand

Alcaraz’s backhand is an okay shot. He can do great things with it from time to time, such as the backhand down the line. Also can take one hand off and slice well. But I never get the feeling it is one of the best backhands out there. I still recall vividly his resorting to moonballing last year in the Cincinnati final, which did not impress me at the time and I said it. He hasn’t hit moonballs since. I think Alcaraz can improve his backhand further.

Sinner backhand

Sinner is the taller man. With his backhand I think of Todd Martin, guys who can really step into it and “lean on the ball” as Leif Shiras would put it. Very solid shot and can switch play very well from going cross court to down the line.

Although when I watch Sinner play, another hardcourt specialist Kim Clijsters pops into my head. Mainly because sometimes you want to see him hit that slice backhand on a low ball. But so many two handers are not programmed to do that. It would add a different dimension to his game. I heard Mats Wilander became an even better player when he added the slice backhand to his two hander repertoire.

Alcaraz net game / transition

Alcaraz is one of the best around the net area. There is not much more to be said on that. Maybe he should consider going to net more often to finish points and conserve energy. His scurrying around all the time will not do him any favours once he gets near the 30 year old mark. That is a sure way to get to the knackers yard quick. Lleyton Hewitt comes to mind immediately. Alcaraz wants to be known as a great shotmaker. So he needs to transition from scurrying counterpuncher to aggressive puncher.

Sinner net game / transition

Nowhere near as accomplished as Alcaraz around the net. However, this is another area Sinner is improving quickly. Well, when I say quickly, I criticised him for a long time for not developing a transition game. However, with Darren Cahill’s guidance he is getting better. His technique on the forehand volley is very good now. He extends the arm out in front and applies slice. Something a lot of modern players seem incapable of doing (applying slice on volleys).

Both guys have a very good overhead, footwork as usual being the key.

Alacaraz movement

This is clearly one of his major strengths. It could be a situation where he over relies on it. In my mind’s eye, I am not seeing Alcaraz dismiss his opponents in double quick time (except Tsitsipas). Alcaraz with experience will have to become more efficient, to cut down on potential injuries.

Sinner movement

Like Alcaraz, Sinner has excellent movement. These are the two best movers on the tour by some margin (taking into account Djokovic’s inevitable decline and retirement).

Sinner has to be wary of his hip when he goes out wide to counter attack with those big crosscourt forehands. But his defence, this week was incredible.

Both Alcaraz and Sinner have incredible defence.

Summary:

Based on the factors I looked at, I think at this stage, Sinner is the player who is making more progress and has a more developed game.

Alcaraz is in a strange situation of having put himself in a vulnerable position. With all of his comments about quick hardcourts and indoor surfaces, it has made people focus on him more and ask the question, how much more development do you need to make if you want to get to number 1 and stay there?
 
#2 ·
It would be worrying if Sinner is not making more progress than Alcaraz, as the difference in talent between the two can only be described as outstanding.
Like I discussed in another post months ago, Sinner is the second most talented player ever, only surpassed by Zverev without Diabetes. The Italian has to be a step above Djokovic in terms of talent, even if he doesn't match the results of the Serb, a consequence of yoga and bosnian pyramids in large part.
Alcaraz would have no business having 5 Slams if not for him playing above 100% for so many Slams.
 
#4 ·
@BurnsTennis, great analysis. Thank you.

Couple of tiny things to add...
In terms of serving, one of the issues that has been brought up regarding Alcaraz's 1st serve is that he he can find the pace but he is not placing his serve with as much precision as the very best servers. He has a very good kick serve which works well for him on clay in particular.

In terms of movement, Alcaraz to my eye moves better on clay and grass than Sinner, but Sinner is excellent at sliding out wide on hard courts, although as you say Sinner may have to watch out for strain on his hip. I think Alcaraz is excellent in terms of his anticipation and explosive movement forward as well as laterally, probably one of the best players I have ever seen in this regard.

Alcaraz has an elite drop shot, especially off the FH side, which is a genuine weapon especially on clay. He did have a tendency to over-use it and players were getting wise to it, but I think he is generally tending to use it more intelligently.

That brings me onto one last point - Given how much talent Alcaraz has and the amount of variety he is able to bring to the game, it's perhaps not surprising that he sometimes seems to be a little lacking in an overall game plan and has been over-reliant on coaching. I think this is something he is going to develop over the next few years and will be an area of improvement for him.
 
#5 · (Edited)
Thanks for this. Take on board everything you say there.

At the moment, Acaraz's serve reminds me of one of those fast bowlers in cricket. You have bowlers who trouble batsmen, with the ball moving around at pace, bounce making them uncomfortable. Then you have some fast bowlers who are easy to hit because batsmen can pick up the pace relatively easily. Alcaraz needs to do more with the ball.

I like your last point a lot. They always say that about shotmakers, it takes longer to get it together. I wonder if the serve is a hindrance? His serve seems tailor made for grinding as opposed to the one two punch or quick points. If Alcaraz can practice placement during the off season that will help him tremendously.
 
#8 ·
Both are technical great . Sinner is more clutch-winning more important points -he is ice cold not nervous at the important points . So the difference is in this area . Djocovic get nervous vs Sinner bc Sinner is king đź‘‘ mentally -that's speaking volumes . Alca can and will work on this area but is a bit more heat head like djoko . Sinner is king ATM đź‘‘
 
#16 ·
Alcaraz is ahead of Sinner on mentally playing the big points. It's one of his biggest strengths. The guy almost always delivers when he has to in finals or fifth sets.
 
#9 ·
Great thread @BurnsTennis! :yeah:

To be fair I find Sinner's serve-return combo as clearly superior to Alcaraz's and I find in-form Alcaraz slightly better from the ground and from the back of the court than Sinner, at least for now, with the exception of non-slow hard courts.
The only department where Alcaraz has a clear edge over Sinner is the net game. Whose improvement should be one of Sinner's main goals for 2025, especially for the grass season.
 
#25 ·
Alcaraz vs Sinner is Fire vs Ice like we had many times before in tennis

Nadal vs Fed
Agassi vs Sampras
McEnroe vs Borg

However, we have been spoiled last few decades to see such great matches that only happen every 50-100 years

Now it will be boring

It's like, yawn, wake me up when they have 10 slams and 200 weeks and then we can start talking
 
#26 ·
Before the 2024 season, the biggest question mark on Sinner is his endurance, and the biggest question mark on Alcaraz is his serve.
Until now we can say it's Sinner who has made more progress. To finish a season 70-6 with no sign of exhaustion is a proof decent endurance throughout the season. On the other hand, Alcaraz's serve is still a liability most of the time, despite having some peak like at Wimbledon, but it's not consistent enough.
One more section to talk about is tactical, which Sinner has improved greatly this year. I see Alcaraz's attempt to improve tactics as well, but the results he earned were yet as good, if not even some regression in his hard court game. But it's not like he's doing nothing, so we may wait one or two more years to see.
 
#27 · (Edited)
Impressive observations but never, ever put Nadal's name in the same list as Agassi & Novak in ROS quality & don't go by the misleading career ROS % stats for Nadal stat padded on Clay.

For ROS, Nadal has literally stood in the bleachers his entire career using his athleticism & wheels content to just keep the ball in play. This worked best on preferred Clay where serving isn't much a factor & against anybody who didn't possess upper tier serving off Clay.

AA & ND NEVER stood anywhere near that far from the baseline, even on first serves against the best servers & it's because their games were patterned & perfected around their explosive ROS action near baseline in order to get the upper hand in rallies leading to BP opportunities.
 
#31 ·
Alcaraz is less prone to upsets at the hands of elite non stop grinders. Evidence - Sinner was Djokovic's pigeon until Djokovic's absolute decline then the tide started to turn. Alcaraz was able to beat Djokovic in Wimbledon final.

Then there is Alcaraz head to head vs Sinner himself, going 3-0 this year. Sinner recently losing to Medvedev at Wimbledon as well.
 
#35 ·
This might sound a bit strange considering Alcaraz's advanced publicity, but he is more or less a grinder himself.

He's a total new one off breed of tennis player. He's a shotmaking grinder :-0

The two usually do not go hand in hand except in his case.

So maybe that's why he has less problems with those type of players.

Don't forget Djokovic beat Alcaraz in the Olympic final.

And oddly when Alcaraz was far ahead in the 3rd set of the Wimbledon final had a mini panic attack (not sure why but he did).
 
#32 ·
@BurnsTennis, if you're taking requests, I'd be very interested to hear some technical insights into some of the players aged 20-22 who are or have been ranked #10-20 this year - i.e. Draper, Musetti, Fils and Shelton - with a particular view to the strengths and weaknesses in their game, whether in your view they have the ability to break into the top 10 and contend for slams, and if not what is preventing them from doing so. The one name I've missed off is Rune, who would make a fascinating case study at some point, but I take your point about how 'temperamental' he has been so maybe put him on hold for now.
 
#49 ·
I did just see a video about how Alcaraz’s backhand is not as technically sound, but he is able to get away with it because of his world class athleticism. Sinner probably is the more technically sound of the two, but Alcaraz definitely has that intangible heart of a champion, which has served him very well so far. I think overall Sinner can win more because he is just so consistently great and the only 2 players who can stop him are Alcaraz and Djokovic on their best days.
 
#52 ·
For me what really set Sinner and Alcaraz apart during this season was the serve.

Alcaraz has actually a really powerful first serve but when it comes to placement and variety, Sinner is surely above of him and that is what makes the difference. Especially in three last finals that he played (WTF and DC), he served at a super high level reaching 14 and 15 aces in just too sets. Alcaraz can improve but given his height of 1.83m I don't expect him to be as good as Sinner at serving and the Italian can also make his serve a bit more powerful.

Sinner also managed to improve his dropshots, particularly the forehand one and the volleys a bit too which together with a better serve enabled him to become more attacking and avoid enter into long rallies from the baseline so much.