signing autographs after a match
It's interesting how players act after a match.
By my experience, in practice sessions they normally do sign autographs.
After a match, the winner normally signs all autographs the fans want, in Toronto, most players did with one exception: Vera Zvonareva after her match against Barbara Schett refused to sign any.
Some players don't sign after a loss, which is understandable, that I saw: Kim Clijsters, Amanda Coetzer.
but I think it's very nice from some players that sign autographs after they lost: Barbara Schett, Mary Pierce and Jelena Dokic (yes, you read it right, Jelena signed a lot of autographs after she lost to Vera).