Thunder point guard Reggie Jackson left Friday’s preseason game at Dallas with an arm injury.

A team official said only that Jackson had a right wrist injury and is scheduled to be re-evaluated Saturday in Oklahoma City.

The injury occurred with 9:19 remaining in the third quarter, when Jackson contorted his body to avoid contact from Mavs forward Al-Farouq Aminu, who met Jackson at the rim to contest a layup attempt. Jackson made the shot, but the angle he took resulted in him landing awkwardly, with his right arm taking the brunt of the impact.

Jackson rolled around on the court a few times, just underneath the basket as he grimaced in discomfort. A foul was called on the play, and Jackson stayed in to attempt the ensuing free throw. But immediately after taking, and making, the foul shot, Jackson again began wincing in pain. With his right arm hanging down by his side, Jackson delivered an intentional foul so that he could be removed from the game.

A member of the Thunder’s medical staff immediately escorted Jackson to the locker room.

The injury left the Thunder with training camp invitee Michael Jenkins as the lone available point guard for the rest of the game. Russell Westbrook did not start the second half after 18 minutes of work in the first half. Sebastian Telfair was a late scratch with a right thumb strain.