BELGRADE, Serbia, May 8 (UPI) -- Novak Djokovic coasted into the semifinals of the inaugural Serbia Open Friday with a 6-3, 6-2 drubbing of Viktor Troicki.

MADRID, Oct. 15 (UPI) -- A pair of grand slam titlists led Wednesday's second-round winners at the $2.78 million Madrid Masters tennis tournament in Spain.

BANGKOK, Sept. 28 (UPI) -- Frenchman Jo-Wilfried Tsonga won the Thailand Open Sunday, defeating favorite Novak Djokovic of Serbia in straight sets.

BANGKOK, Sept. 26 (UPI) -- World No. 3-ranked Novak Djokovic advanced to the semifinals of the $576,000 Thailand Open with a straight-set victory Friday in Bangkok.

FLUSHING MEADOWS, N.Y., Sept. 2 (UPI) -- Roger Federer and last year's runner-up, Novak Djokovic of Serbia both needed five sets Tuesday to reach the men's quarterfinals of the U.S. Open.

INDIAN WELLS, Calif., March 23 (UPI) -- Serbian Novak Djokovic defeated American Mardy Fish in the championship match of the Pacific Life Open at Indian Wells, Calif., Sunday.

PARIS, June 6 (UPI) -- Two-time defending champion Rafael Nadal remained undefeated at the French Open Wednesday earning a semifinal berth with a straight-set victory. Nadal, the tournament's No. 2 seed, ran past 23rd-seeded Carlos Moya 6-4, 6-3, 6-0 in quarterfinal action.

MARSEILLES, France, Feb. 12 (UPI) -- Russian Mikhail Youzhny beat fourth-seeded Serbian Novak Djokovic in Monday's first-round action at the Open 13 tennis tournament in France.

AMERSFOORT, Netherlands, July 17 (UPI) -- Second-seeded Frenchman Paul-Henri Mathieu and third-seeded Serbian Novak Djokovic were among Monday's first-round winners at the Dutch Open.

BUCHAREST, Romania, Sept. 14 (UPI) -- Former champion David Ferrer was among Tuesday's first-round winners at the Romanian Open Tuesday but top-seeded Fernando Verdasco was upset.