Roger Federer bounced from U.S. Open by little-known Czech

Roger Federer is not the top tennis player in the world -- not today at least. Federer endured a shocking loss Thursday afternoon to some obscure Czech player whom few people have heard of, and even fewer of whom can pronounce his name properly.

Meet Tomas Berdych (BER-ditch), who earlier today wiped the court with the mighty five-time U.S. Open champion Roger Federer. Federer was playing in this 34th consecutive Grand Slam tournament quarterfinal, but in this quarterfinal he only won the third set, and lost in four sets.

"I just didn't come up with the goods tonight," Federer told the Associated Press. "It was unfortunate."

You knew something was up when Federer lost the first set, after an unusually long four-day rest. Federer had more than twice as many forehand errors (55) than in any of his U.S. Open matches this year.

This Tomas Berdych character has actually beaten Federer four of the previous seven times they've faced off -- albeit on smaller and much less significant stages than the U.S. Open. Berdych did previously beat Federer at the 2010 Wimbledon tournament and the 2004 Olympics, but most of his wins over Federer have been at things with names like "Ericsson Open" and "Western & Southern Open".

Does Berdych have a hot model girlfriend. like most big tennis players? Naturally, he does. Her name is Ester Satorova, and she describes herself on Facebook as "Tomas Berdych's girlfriend and model."

Berdych will now go on to meet this year's Olympic Gold Medalist champ Andy Murray in Saturday's semi-final. You can catch all the action online for free at USOpen.org.