SACRAMENTO -- Rookie down.

Marvin Bagley III took a hard spill during the second quarter of the Kings’ close loss to the Golden State Warriors, and did not return Friday night at Golden 1 Center. An MRI revealed Bagley suffered a bone bruise on his left knee, and he'll miss at least the next 10 to 14 days, according to the Kings.

Bagley initially injured the leg while going up for a rebound. He was knocked off balance and came down awkwardly. He was able to get up and score a basket on the ensuing play, but he immediately went to the locker room after that. 

The rookie scored four points on 2-of-2 shooting and grabbed one rebound in five minutes of action. 

Bagley entered Friday averaging 13 points and 6.3 rebounds in 23.8 minutes per game. He hit double figures in each of his last two contests, scoring 17 points in Wednesday's win over the Minnesota Timberwolves. 

With Bagley out, small forward Justin Jackson played 26 minutes -- his most in nearly two months. Rookie big man Harry Giles III did not play Friday, but he could be back in the rotation in the wake of Bagley's injury.