US guard Paul has sprained thumb

The diagnosis was revealed on the day the Americans were due to name their final 12-man roster for the London Olympics.

Paul was hurt Friday on the first day of training camp, and an X-ray showed the injury.

The Los Angeles Clippers All-Star particiapted in some non-contact drills on Saturday, but didn't scrimmage.

Injuries had already cut the list of 20 Olympic candidates to 14 healthy ones, with such NBA stars as center Dwight Howard, guards Derrick Rose and Dwyane Wade, and forward Chris Bosh -- a third of the once likely Olympians -- out of London consideration.