Oklahoma will be without its star running back for the rest of the season, as Rodney Anderson will miss the remainder of the year after suffering a knee injury in last week’s game against UCLA. The school issued a statement regarding the injury on Sunday night.

This marks the second time in his career that Anderson’s season will be cut short. In 2016, the running back suffered a broken leg in Week 2, costing him the remainder of the year.

“We’re heartbroken for him,” said Oklahoma coach Lincoln Riley in a statement. “He’s overcome so much in his career, and if anybody can do it again it’s Rodney. He’s played a lot of great football and has a lot more ahead of him. He’s just a tremendous person and player and we’ll miss him on the field. But we know he’ll be with us every step of the way as a team captain, and that other players will step up in his place.”

Anderson rushed for 100 yards and two touchdowns on just five carries in the season opener for No. 5 Oklahoma against Florida Atlantic. Last week he had 19 yards and a score on six touches vs. UCLA.

In 2017, Anderson racked up 1,161 yards and 13 touchdowns for the Sooners, hitting the 100-yard mark in six of the team’s final eight games last fall.

This is a tough loss for Oklahoma but an even more disappointing situation for Anderson.