Rookie big man Jaylin Williams, the 34th overall pick of June’s draft, sustained a concussion on Wednesday in a G League contest for the Oklahoma City Blue, the Thunder announced. The second-rounder is now in the league’s concussion protocol. He’s only made seven NBA appearances thus far, averaging 3.0 PPG and 2.3 RPG in 8.7 minutes per contest, but he’s been a regular with the Blue, the Thunder’s affiliate, averaging 14.1 PPG, 8.3 RPG, 5.3 APG and 1.4 SPG on .626/.364/.741 shooting in 11 games (30.6 MPG).