UNLV freshman forward Stephen Zimmerman Jr. is out with a sprained left knee, and it's uncertain when he will return.
He was ruled out indefinitely after undergoing an MRI on Monday morning and then being checked out by team doctors.
Zimmerman was injured in the first half of Saturday's 111-104 double-overtime loss at Fresno State. The Rebels (13-11, 4-7 Mountain West) next play San Jose State (8-15, 3-8) at 7 p.m. Wednesday at the Thomas & Mack Center.
"This is another tough injury for our team right now," UNLV interim coach Todd Simon said in a statement.