UNLV defensive lineman Ryan Keeler died on Monday, the university said in a statement. He was 20.

As a redshirt freshman last season, Keeler played in seven games. The Chicago native made his first start in October in a game against Air Force where he recorded seven tackles and a sack.

“We are devastated to have lost a member of our Rebel family,” UNLV football head coach Barry Odom, who was hired in December, said in a statement. “While I had the honor of knowing Ryan for only a couple of months, he already stood out to our coaching staff as an incredible person, student and teammate. Our condolences and prayers go out to Ryan’s family as we grieve along with them over this tremendous loss.”