Rafael Nadal toils, Novak Djokovic cruises in first match since U.S. Open

Updated 1147 GMT (1947 HKT) October 6, 2015

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Rafael Nadal played his first ATP match since the U.S. Open and had a nice draw, up against a wildcard ranked outside the top 200. Lintao Zhang/Getty Images AsiaPac/Getty Images

But Nadal, mirroring his season, struggled against Wu Di. At one stage in the second set he lost 11 of 13 points. Lintao Zhang/Getty Images AsiaPac/Getty Images

But Wu missed a chance to force a decider, losing the last four games. GOH CHAI HIN/AFP/AFP/Getty Images

Nadal eventually triumphed 6-4 6-4 and next has a tougher task on paper, playing big-serving Canadian Vasek Pospisil. Lintao Zhang/Getty Images AsiaPac/Getty Images

There were no issues whatsoever for the men's player of the season, Novak Djokovic, in his first match since winning the U.S. Open. Chris Hyde/Getty Images AsiaPac/Getty Images

World No. 1 Djokovic, who won three of the four majors in 2015, crushed the flashy Italian Simone Bolelli 6-1 6-1. Chris Hyde/Getty Images AsiaPac/Getty Images

Djokovic is the three-time defending champion in Beijing and has won the title five times in total. Chris Hyde/Getty Images AsiaPac/Getty Images