Tour de France winner Floyd Landis has undergone surgery to repair his injured right hip, his spokesman said on Thursday.
The two-hour operation was performed on Wednesday in San Diego, California by Dr. David Chao, who had operated twice before on Landis's hip.
Landis returned home on Thursday and will begin a six-week physical therapy to strengthen the hip and increase its range of movement. He is expected to begin low intensity training on his bicycle in one to two weeks.
Landis broke his hip in 2003 during a crash while training near his home in Murietta, California.
The 30-year-old tested positive for the testosterone following his Tour victory in July but has denied using performance-enhancing drugs.