Tyner, was one of the most exciting running back to play at Oregon was unable to play last season and missed a fair portion of his sophomore season after rushing for over 700 yards his freshman year.
He was able to return in 2014 to play in the 2015 Rose Bowl against Florida State and rushed for 124 yards and two touchdowns.
“We thank Thomas and wish him well,” Coach Mark Helfrich said in an Oregon Athletic blog entry. “We will continue to support his efforts to graduate from the University of Oregon.”
With the loss of Tyner, the Ducks will carry on with four scholarship running backs on the roster including junior Royce Freeman, who ran for 1,836 yards and 17 touchdowns in the 2015 season.
The other backs include redshirt junior Kani Benoit, sophomore Taj Griffin and redshirt sophomore Tony Brooks-James.