The World No. 1 sent out an inspirational tweet featuriing his young son, Stefan.

"(I'm sorry) for the American people, for Serena, for the Grand Slam, but today is my day sorry guys," Vinci said after shocking world No. 1 Williams, 2-6, 6-4, 6-4.

Boris Becker says Roger Federer's SABR return wouldn't have flown with his generation.

Italy's Flavia Pennetta was relieved on Wednesday when she thought her semifinal would be a night session. But rain changed all that on Thursday.

The tournament announced that all four singles semifinals will be played on Friday in New York due to an impending storm.

“It was cooler seeing him win here at the US Open than it was for me to win the US Open,” says Tracy Austin, whose son, Brandon Holt, and partner Riley Smith reached the junior doubles quarters.

Roger can't resist. He. Just. Can't.