After this happened, one of the on-air commentators said (paraphrased):
"it is remarkable how hard that was hit. I suppose if you have twins, you don't have to worry about these things anymore".
What was he talking about?
[+ Show Answer]
Roger Federer's astonishing between-the-legs winner versus Brian Dabul in his 1st round US Open 2010 match. This was the 2nd consecutive year he managed that moment.
See this for the video