Oklahoma sophomore linebacker Addison Gumbs will transfer after suffering a season-ending, non-contact knee injury on Friday before the Sooners' opener last weekend.
Gumbs opened as a co-starter with Mark Jackson at the "jack" outside linebacker/defensive end position on Oklahoma's Week 1 depth chart.
Gumbs, a native of Hayward, California, played in four games last year.
He was the No. 164 overall player in the 2017 signing class.