Roger Federer is airborne at US Open...

Four-time defending champion Roger Federer is fighting like heck to retain his US Open title and it has not been easy. He just beat Gilles Muller of Luxembourg to make it to the semifinals where he will face either Nova\k Djovoc or Andy Roddick who play tonight.

Roger extended his own record by reaching the semifinals at an 18th consecutive Grand Slam tournament. It was Federer's 32nd straight victory at the U.S. Open, where he has won the past four championships. The only man to have won more matches or titles in a row at this tournament was Bill Tilden in the 1920s

Go Roger!