No problem here's what Fed said about conditions and their effect on the match against Del Potro yesterday in an interview at RG website:
ROGER FEDERER:
Well, I thought the conditions definitely slowed down midway through the fourth set or so when the clouds came in, thecooler weather came in.
I also think that might have helped me, you know, as well as getting more into his service games and into his rallies. I knew if I were able to break him that things could definitely fall my way, and that's exactly whathappened.
I think I definitely started to play a bitbetter. I was able to play more consistent and also mix it up well. Thenalways, again, use the dropshot. It's definitely been an important shot for me this tournament so far.