It was a difficult day at the office for Roger Federer's camp as he was upset by Tomas Berdych in the quarterfinals of the US Open. It was uncharacteristic to see Federer's forehand on rest day producing 24 of is 40 unforced errors during the match.

On the other hand, Berdych displayed brutal force of power as he maneuvered Federer around the court, pounding winners and served 14 aces to dispatched the former champion.


Tomas Berdych of the Czech Republic celebrates defeating Roger Federer of Switzerland after their men's singles quarterfinal match on Day Ten of the 2012 U.S. Open at the USTA Billie Jean King National Tennis Center on September 5, 2012 in the Flushing neighborhood, of the Queens borough of New York City. (September 4, 2012 - Source: Mike Stobe/Getty Images North America)