Former Clemson wide receiver Diondre Overton has died, the school announced Saturday afternoon.

Overton, a two-time national champion with the Tigers from 2016 to 2019, was 26 years old. No cause of death was given.

Overton signed with Clemson in the class of 2016 as a four-star prospect out of Page High School in Greensboro, North Carolina. In four seasons with the Tigers, he totaled 52 receptions for 777 yards and seven touchdowns, serving as a reserve during the program’s national title runs in 2016 and 2018. Overton was voted permanent team captain in his final season in 2019.

Coach Dabo Swinney briefly stroked the Overton captain’s trophy as he and the team entered Memorial Stadium for Saturday night’s game against Appalachian State.

“Clemson Football and the entire Clemson Family mourn the passing of Clemson alumnus Diondre Overton,” the program wrote in a message on X on Saturday. “Our thoughts are with his family and friends.”

Overton’s former Clemson teammates mourned his passing on social media Saturday morning, including Cincinnati Bengals wide receiver Tee Higgins, who wrote on his Instagram Story, “Brotha, I miss you already man. Love you 5L…. I’m in a lot of pain right now. Rest in peace, big game.”

Overton’s professional career included stops in the CFL, the European League of Football and the UFL. He was selected by the Memphis Showboats in the UFL dispersal draft earlier this year.

The Associated Press contributed to this story.