World number one Novak Djokovic will miss next week's China Open in Beijing with a back injury, the 24-year-old Serb said on Thursday.
There were tears for US Open winner Novak Djokovic whose injury-forced retirement saw champion Serbia slump 3-2 to the South Americans.
Novak Djokovic and Rafa Nadal will be energised by national pride this weekend as they lead their countries into battle in the Davis Cup semi-finals.
Novak Djokovic, whose US Open triumph was his third Grand Slam title of the season and 64th win in 66 matches in 2011, insisted on Monday that he is not invincible.
Rapper Jay-Z and his wife, singer Beyonce, attend the match between Novak Djokovic of Serbia and Rafael Nadal of Spain in the men's final of the U.S. Open tennis tournament in New York, September 12, 2011.
Serbia's Novak Djokovic outplayed Spain's Rafa Nadal to win the US Open final 6-2 6-4 6-7 6-1 at Flushing Meadows on Monday and show why he really is the hottest player in the game right now.
Novak Djokovic and Rafa Nadal will meet in the US Open final for the second year in a row after winning their semifinals on a day of unrelenting drama and precision tennis at Flushing Meadows on Saturday.
Rafa Nadal, his form and confidence rising with each match, powered past Britain's Andy Murray 6-4 6-2 3-6 6-2 at the US Open to set up a rematch of last year's final with Novak Djokovic.