It is hard to forget Connors’ magical run at the 1991 US Open, when the American reached the semifinals at 39.
The wildcard entry was down and out in his opening round match against Patrick McEnroe, coming back from two sets down and 0-3, 0-40 in the third set to advance. Two wins later, he was in the fourth round playing Aaron Krickstein. This time, on Connors’ 39th birthday, the crowd favorite went down 2-5 in the fifth set. Again, he found a way to win.
While Connors did lose to Jim Courier in the semifinals, his performance would cement his run in history.
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So the moral of the story here is: don’t fret too much Federer fans. While 38 may sound old for a tennis player, there are athletes who have competed up to that age and older before, and Federer just so happens to be the greatest of all time, so who knows what he's capable of.