Washington outside linebacker Joe Mathis, in the midst of a breakthrough senior season for the Pac-12’s top defense, is expected to miss Saturday’s game against Oregon State with an unspecified injury — and could be sidelined for several more weeks, sources told The Seattle Times.
Mathis was spotted on campus this week in a walking boot. He leads the team in sacks (5.0) and is tied with nose tackle Greg Gaines for the team lead in tackles for loss (7.5).
A 6-foot-2, 255-pound senior from Ontario, Calif., Mathis was suspended by UW coach Chris Petersen two years ago and nearly left the team then.