Oregon running back Thomas Tyner has taken a medical retirement from football, the school announced.
“We thank Thomas and wish him well,” head coach Mark Helfrich said. “We will continue to support his efforts to graduate from the University of Oregon.”
Tyner missed the 2015 season after undergoing shoulder surgery.
The former five-star prospect out of Aloha, Ore., finished his college career with 1,284 rushing yards and 14 touchdowns in two seasons.
“Thank you for all the support over the years,” Tyner wrote on Twitter. “Couldn't have been more blessed to have been part of such a great community, I have the utmost respect for the staff and my teammates. Now it's time to get in the books and finish up in school. Much love to you all and Go Ducks!”