The win sent Federer into his 26th Grand Slam final, where he will face defending champion Novak Djokovic in Sunday’s championship match.
Even though Djokovic won, the crowd was so impressed with Wawrinka’s effort and game, they gave him a well-deserved long-standing ovation after the match.
Rafael Nadal is in the US Open final after victory Saturday over Richard Gasquet.
There’s video evidence out there that Rafael Nadal did, indeed, lose a tennis match to Richard Gasquet. OK, so it was half a lifetime ago, and it was at a tournament in Tarbes, France, for kids 14 and under.
Flavia Pennetta made her first Grand Slam semifinal, defeating 10th-seeded Roberta Vinci 6-4, 6-1 on Wednesday in an all-Italian quarterfinal at the US Open.