Oregon receiver and Olympic hurdler Devon Allen will miss the rest of the season because of a left knee injury, the team confirmed Monday night.

Allen injured the anterior cruciate ligament in his knee during the fourth quarter of Saturday’s 35-32 loss at Nebraska. The nature of the injury was first reported by the Duck Territory website.

Allen, who also runs track at Oregon, finished fifth in the 110-meter hurdles last month at the Rio de Janeiro Olympics. He became the fourth active college football player in the modern era to compete in track and field at the Olympics.

The team also confirmed that left tackle Tyrell Crosby will miss the rest of the season because of a broken foot.

Allen injured his right knee at the end of his freshman season and required surgery before returning last year.

Crosby posted to Twitter: “Thank you everyone (especially the Oregon and Nebraska fans) for your get well tweets. I’ll bounce back from this, I promise!”

After competing in Rio, Allen was a late arrival for the Ducks’ fall camp but jumped right back into action. He appeared in the opener against UC Davis and started Week 2 against Virginia and caught a 77-yard touchdown pass from quarterback Dakota Prukop.

Allen first made a splash as a redshirt freshman, finishing as the team’s third-best receiver with 41 catches for 684 yards and seven touchdowns — including an 80-yard TD pass from then-quarterback Marcus Mariota against Washington State.

But his season ended when he injured his knee on the opening kickoff of Oregon’s Rose Bowl victory that year over Florida State. He required surgery and missed that season’s national championship game against Ohio State.

He spent much of last season trying to return to form on the football field and the track — while eyeing the ultimate prize of an Olympic bid. He appeared in 12 games, but caught just nine passes for 94 yards

Allen earned a spot on the Olympic Team for Rio by winning the 110-meter hurdles in the Olympic Trials this past July at Oregon’s Hayward Field. He also won the NCAA title in the event.

Crosby, a 6-foot-5 junior, is widely considered a potential high NFL draft pick. He left the Nebraska game in the first half.