Re: Meaning of the word " Choke "
Everyone gets tight in some points/games and even entire sets. Thats why its absurd when people say that someone 'chokes' on a big point. It doesn't work that way. If you use that definition, every tennis player in the world chokes multiple times in an average match...
Choking is a sustained period where you play much less well than you normally do, and in addition has a very characteristic feel (eg the rush of adrenaline, the wobbly legs, etc).
Choking is therefore the act of not being able to recuperate from a physiological problem. The Gaudio/Coria match is an example. It wasn't just the bad game in the 3rd set that Coria should have won, that was understandable, but rather the complete inability to bounce back to proper form in sets 4 and 5 despite being physically still there. That's what a choke looks like.
So I emphasize it is not simply missing a big shot in an important tiebreaker, it is rather the complete inability to recuperate.