Harper (hip) is a game-time call for Game 3 of the Western Conference Finals against the Thunder on Friday, Shams Charania of ESPN reports.
Harper suffered the injury during Wednesday's Game 2 and is officially questionable to play, but the Spurs will re-evaluate his status following warmups. De'Aaron Fox (ankle) is also questionable for the Spurs, so the team could be shorthanded in the backcourt.