The US Open is warning players, their coaches, agents, family members, as well as tournament staff, to be careful of the information they reveal on the social networking site Twitter, so as not to violate anti-corruption rules.
Signs, written by the Tennis Integrity Unit, are being posted in the players' lounge, locker rooms and referee's office. The signs are warning that tweeting is not allowed on court during matches. But that’s not all – off-court tweeting is also under radar: "certain sensitive information concerning your match or other matches and/or players should be avoided. Depending on the information sent out this could be determined as the passing of inside information."
I’m wondering what Serena Williams thinks about this. She has almost 1 million followers on Twitter, and tweeting, anyplace and anytime, is one of her favorite activities.