Los Angeles Clippers forward Blake Griffin hurt his left knee in a Team USA scrimmage Wednesday and is returning to Los Angeles to be examined by team doctors, league sources told Yahoo! Sports.

Griffin twisted the knee in a scrimmage, a source said. The severity of the injury is unclear. He’s expected to have an MRI, possibly as soon as Thursday.

Griffin injured the same knee in Game 5 of the Clippers’ first-round series against the Memphis Grizzlies.

via Adrian Wojnarowski of Yahoo! Sports