Andy Murray, Bigtime

Andy Murray just came off the practice courts and is about two hours from the biggest match of his life.

If he plays anything like the way he played yesterday, Roger Federer might have a real test.

But then again, these matches often come down to big-situation experience (please see: Serena v. Jankovic last night, or Djokovic v. Federer, 2007 U.S. Open final). Prior to this tournament, the 21-year-old Murray had never done better than the quarterfinals at a Grand Slam; Federer has won 12, and has been in the finals in 12 of the last 13 Grand Slams.

Reporters in the press center will be writing B-copy for two story lines: Can Federer shut up all his critics and win his first Grand Slam of the year, his 13th of his career, and his fifth consecutive Open? And can Murray put his stamp on the game and nudge his way into the game's elite group of Federer-Nadal-Djokovic with a major upset?

Murray owns the head-to-head against Federer (he's 2-1), but Federer hasn't lost here since 2003.