Blake Griffin off Olympic team with knee injury

Associated Press
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FILE - In this May 15, 2012, file photo, Los Angeles Clippers' Blake Griffin (32) soars to the basket past San Antonio defenders Tony Parker (9), of France, Kawhi Leonard (2) and Boris Diaw (33), of France, during the first quarter of Game 1 of an NBA basketball Western Conference semifinal playoff series in San Antonio. The Clippers signed Griffin to a five-year contract extension that could be worth up to $95 million, the team announced on Tuesday, July 10, 2012. (AP Photo/Eric Gay, File)

WASHINGTON (AP) — Blake Griffin has officially withdrawn from the Olympics and Anthony Davis has been added to the U.S. basketball team's roster.

Griffin needs surgery to repair torn cartilage in his left knee and joins a lengthy list of American stars sidelined this summer.

Davis replaced him in the Americans' 113-59 exhibition victory over the Dominican Republic on Thursday in Las Vegas, scoring nine points in the fourth quarter. The No.1 overall draft pick couldn't be put on the 12-man roster for London until Griffin had withdrawn Friday.