The Cleveland Cavaliers signed rookie seven-footer Alex Kirk to a partially guaranteed, multi-year contract, league sources told RealGM.

The Cavaliers announced the signing on Monday afternoon.

Kirk averaged 5.2 points, 3.4 rebounds and 52.4 percent field-goal shooting for the Cavaliers’ summer league team in July.

Kirk went undrafted out of New Mexico, averaging 13.2 points and 8.7 rebounds in his junior season when he forged a shot-blocking role with 2.7 blocks per game.