Hall of Fame jockey Gary Stevens, out of racing since his retirement in November 2005, will begin what he hopes to be a comeback Sunday in the sixth race at Santa Anita.
Stevens, 49, will ride Jebrica in a $50,000 claiming race.
"My passion is still there," Stevens said Thursday. "I should say, my passion has come back."
Knee problems forced Stevens into retirement, but he said that after a recent workout program his knees are "125% better than they were the last 10 years of my riding."
Stevens retired with 4,888 wins. He was at his best in the big-money races. "At the end, I didn't really want to be out there," he said, "except for the million-dollar races. They seemed to make my pain go away."
He rode three Kentucky Derby winners, two Preakness Stakes winners and three Belmont winners, as well as collecting eight victories in Breeders' Cup races, an astounding nine in the Santa Anita Derby and four more in the track's Big 'Cap.