Sterling Marlin, winner of 10 NASCAR Sprint Cup races, revealed to ESPN.com that he has Parkinsonism.
Marlin said he began experiencing symptoms about a year ago, when he cut the knuckle on his right hand and had nerve damage.
Shortly thereafter, he had trouble completing fine-motor skills with his right hand. In time, the hand began shaking.
"Cut the knuckle real bad on (my) bird finger ... I couldn't shoot a bird. Just impossible," Marlin told ESPN's Marty Smith by phone. "It wouldn't move and I thought that was the problem. But it got healed up and I said, '... Something's still wrong.' And it kept getting worse and worse and worse, so I went to the doctor to see what the hell's going on."
He found out during the doctor's visit that he had developed Parkinsonism.
Marlin is one of just nine drivers to win more than one Daytona 500 race, winning in 1994 and 1995.
Marlin is retired from Sprint Cup racing but competed at the Nashville Fairgrounds Speedway over the summer.
--James Harden told reporters on Sunday that he will sign a contract extension with the Houston Rockets, who acquired Harden from the Thunder in a big trade over the weekend.
Harden had been seeking a large contract extension from Oklahoma City.
"Yes, yes," Harden told the media when asked whether he would sign an extension with the Rockets. "I'll let them figure that out with my agent.
---The Charlotte Bobcats waived forwards Josh Owens and DaJuan Summers. The Bobcats roster currently stands at 14 players.
Summers played in six preseason games, averaging 2.3 points and 1.8 rebounds in 7.5 minutes. Owens did not see any game action in the preseason.