Wyoming senior linebacker Mark Nzeocha, who was injured in the Cowboys' 27-20 overtime loss to San Jose State on Saturday, is doubtful to return this season, head coach Craig Bohl said.

Nzeocha -- a 6-foot-3, 239-pound senior -- leads the team with 59 tackles, two sacks and two forced fumbles. It appeared that he hurt his knee midway through the Homecoming game against San Jose State.

"The outlook for him to be playing the rest of the year would be extremely doubtful," Bohl said.

To fill Nzeocha's void, Bohl said the staff is looking at sliding either Devyn Harris or Jordan Stanton -- both seniors -- to the strong side and using sophomore Lucas Wacha as the weakside linebacker. Junior Jeff Lark could also be worked into the mix.

Wacha, who made eight tackles in relief last week, racked up 88 tackles and started 11 games in 2013.

Nzeocha's absence will also be felt, Bohl said, in many more places than just Wyoming's base defensive fronts.

“The x-factor in all of this is going to be special teams," Bohl said. "To the average fan, they don’t see how much the ball moves on a special teams play. Mark Nzeocha played critical roles on the punt team, he was on the kickoff coverage team and all of those things.