Theis will come off the bench for Wednesday's matchup with the Thunder, Cayleigh Griffin of AT&T SportsNet Southwest reports.
After starting all 12 games, he has been healthy for this season, Theis will move to the bench for Wednesday's contest with Danuel House starting instead. The reason for the move isn't known, but Theis has had a solid start to the season, so he should still figure to have a decently sized role with the team.