ranked Novak Djokovic advanced to the Rogers Cup final when Jo-Wilfried Tsonga retired from their semifinal match Saturday night because of an apparent right arm injury. Djokovic, who led 6-4, 3-0 when the Frenchman retired, will face sixth-seeded Mardy Fish in the final. “I don't think my game will significantly change,” Djokovic said about Fish's serve-and-volley style. “I will play the game I always play — aggressive from the baseline, trying to take every chance to go for the shots. “I think these conditions, which are a bit faster, are quite suitable to his style of game. He's been winning his matches quite comfortably. He's been serving extremely well.” The Australian Open and Wimbledon champion is playing his first tournament since taking the top spot in the world rankings and improved his match record for the year to 52-1, including 28-0 on hard courts. Djokovic, the Rogers Cup winner in 2007, is seeking his ninth tournament win of the year and his record fifth of the season in an ATP Masters event. Tsonga, who took Djokovic to four tight sets in the Wimbledon semifinals, indicated to the chair umpire there was a problem with his arm after losing his first service game of the second set. After Djokovic held serve, Tsonga was examined by a doctor at courtside and decided to stop playing. Tsonga said afterward that an ultrasound showed no tear in his muscle. He said the arm had been hurting for three days, but he opted to continue playing in the tournament. Earlier, Fish advanced to his third straight ATP Tour final, beating Janko Tipsarevic 6-3, 6-4. The American has won 11 of his last 12 matches, winning at Atlanta last month and reaching the final two weeks ago in Los Angeles. He's trying to become the first American to win the Rogers Cup since Andy Roddick in 2003.
