He is a bit short at 180cm to have a real killer serve. Go for too much power and he will have a low percentage. Go for high FS % and he can't go for power in them. Shorter players have a smaller margin of error unless they have really amazing technique. I don't think Dolgos technique is good at all. His ball toss is so low that it doesn't allow him to jump up as high as maybe he could.
Still Dolgo has chosen to go for free points on the serve knowing he will have a low FS %. He can't have both so the IF of this thread isn't even an IF
If Dolgopolov improves his first serve how high can he go?
The sky is the limit for Alex. His talent is unreal he just needs to figure out shot selection that is all. Dolgo is definitly on the rise and maybe has a outside shot at the WTF if he gets on fire in the indoor season.
He will make the top 10 definitely at some part of his career. But he's already nearing peak age and with a rapid serve motion he's got which would lead to injuries in his late 20s, I doubt he'll ever make the top 3.