Utah has suffered another season-ending injury to a key contributor. Head coach Kyle Whittingham announced Monday that defensive lineman Van Fillinger is out for the rest of the year with a lower-leg injury. 

Whittingham did not provide any other details on the situation. He said Fillinger won’t be able to return in the postseason.

The third-year defensive end made appearances in Utah’s first eight games, earning six starts. He did not play last Saturday in the 45-20 win over Arizona.

Fillinger had five sacks in his first eight games to lead all Utes. He also ends the year with 18 tackles and a forced fumble.

In Fillinger’s absence, Whittingham said the Utes will run a four-man rotation at the defensive end spots with Jonah Elliss, Connor O’Toole, Gabe Reid, and Miki Suguturaga.

Elliss has been playing better for the Utes in recent weeks, with two tackles for loss and a forced fumble in his last three games.

“Jonah was all over the place,” said Whittingham Saturday after the game. “He is a terrific athlete, and I’m convinced that if we decided to do that, he could be a great middle linebacker. That’s how athletic, fast, and agile he is, but right now he is doing a great job on the edge for us. He’s really a valuable commodity for our defense.”

Utah plays Stanford at Rice-Eccles Stadium Saturday at 7 p.m. PT on ESPN.