Williams is in the starting lineup for Sunday's game against the Mavericks, Joe Mussatto of The Oklahoman reports.
Williams, who was sidelined Friday due to an ankle injury, was listed as available earlier Sunday, but he'll return to the starting five as well. This change moves Mike Muscala to the bench. Williams is averaging 3.0 points and 3.5 rebounds per game across 11 outings (three starts) in his rookie campaign.