Roger Federer played what he called the best shot of his life as he booked his place in the US open final against Juan Martin del Potro. Federer played an outrageous passing shot through his legs on his way to beating Novak Djokovic. Here are some more examples of some of the most outrageous shots in tennis...

Michael Stich plays a one in a million passing shot through his legs to win a point against Michael Chang in the semi final of the 1994 US Open.

A retreating Fernando Gonzalez plays a shot through his legs to rescue a point against Ivan Ljubicic in the 3rd round of the Canada Masters.

Mary Pierce wins over the French crowd at Roland Garros in 2000 by playing a spectacular winning shot past Monica Seles in the quarter final.

Roger Federer calmly plays a superb return to David Nalbandian's lob in the semi final at Roland Garros 2006.

Despite seemingly being on the back foot Rafael Nadal hits a passing shot on the run to take a point off Fernando Verdasco at Queens Club in 2006.

Roger Federer frustrates Andy Roddick at Basel in 2002 with a flying shot from behind the baseline.

Andy Roddick breaks his own fastest serve record with a speed of 155mph against Vladimir Voltchkov in the 2004 Davis Cup.