LOS ANGELES — Luke Walton will miss at least one week of the NBA playoffs with a partial ligament tear in his left ankle.

The Los Angeles Lakers' forward sprained his ankle in Saturday night's Game 4 at Utah. He had an MRI this morning, which revealed the partial tear of the deltoid ligament.

Walton, a reserve, is out indefinitely and will be re-evaluated in one week.

He is averaging 4.8 points and 2.5 rebounds for the Lakers, who have a 3-1 series lead over the Jazz going into Game 5 Monday night.