US Open 2011: Novak Djokovic beats Roger Federer in five sets
(source: bbc.co.uk)
Djokovic beat Federer over five sets in last year's US Open semis
World number one Novak
Djokovic saved two match points against Roger Federer for the second
year running to win a thrilling US Open semi-final.
Federer's attacking style held sway early on but Djokovic roared back to win 6-7 (7-9) 4-6 6-3 6-2 7-5.The Serbian now stands one win from a fourth Grand Slam title, and his third of an incredible 2011 season.
Reigning champion Rafael Nadal plays Britain's Andy Murray in the second semi-final later on Saturday.
Star Smile mad