Lonzo Ball has a sprained left shoulder and will be out at least a week, the Los Angeles Lakers said Sunday. The rookie point guard underwent an MRI that revealed the injury, which will keep him out of Monday's Christmas night game against the Minnesota Timberwolves. The Lakers play five games through Jan. 1, against the Timberwolves, Memphis Grizzlies, LA Clippers, at Houston Rockets and at Minnesota. With Ball not being re-evaluated for a week, the point guard could be held out of all five of those games. Ball said he "felt it pop kind of" after he got tangled up with Portland's Jusuf Nurkic near the end of the first half of a loss to the Blazers on Saturday. While he remained in the game and finished with 10 points, 11 assists and 8 rebounds in 37 minutes, Ball said afterward that he had swelling in the shoulder. "I am not really sure what happened, but definitely felt it pop kind of," Ball said after the loss. "I'll just ice it and be ready to go Christmas." Ball repeatedly said he was confident he would be able to play Monday, but the MRI revealed the sprain.