http://www.usopen.org/en_US/news/interviews/2015-09-11/an_interview_with_roger_federer_semifinals.html?promo=previous_interview Les quelques mots de Federer sur cette fin de tournoi féminin tiens 
Q. What do you think about what happened on the women's side and Serena losing?
ROGER FEDERER: Yeah, I mean, definitely a huge surprise, wasn't it? I didn't see much of it. I always thought Pennetta plays a nice game. I'm not surprised for some reason she's in the finals because she's showed big matches in the past.
Roberta is more famous for doubles almost, but of course I like that she has a one-handed backhand and uses the slice to great effect. Obviously for you guys it's an unbelievable moment in Italian history almost, even though you have had success with Errani and Schiavone, as well. I guess it's even a bigger occasion than me playing Stan tonight, because that was a big deal in Switzerland, as well.
For me, it was, anyway, a huge moment. I hope one day I can play Stan in a Grand Slam final. But you should enjoy it, because you just don't know when it's going to happen next. I hope you're filling your pages because they deserve it. (Laughter.)