Roche, who has been Federer's part-time coach since January, has pinpointed areas of the 24-year-old's game that need improvement. He'll join Federer at the Tennis Masters Cup in Shanghai, China, in November to begin working more closely with him.
"I think his net game, he is obviously a good volleyer,but he can get better," Roche said Wednesday. "I think if he served and volleyed more it would certainly help his cause in the long run.
After Shanghai, Roche and Federer won't meet again until just before January's Australian Open at Melbourne, where Federer will attempt to win his third Grand Slam singles title in a row, informs the AP.
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