Former coach: if federer keep healthy can still win one or two grand slam

Roger federer coach before cutting Dispatch of sina sports Beijing time on December 10, most of the 2016 season through injury federer will open in the hopman cup in new season, and his former coach Tony roche has feeling to Swiss over the age of 36 years old next year if we can stay healthy, still can beat the best players, was going to win a grand slam or two again. "I'd like to make two or three years, Roger could have and like...