Arizona State has seen its debut season under coach Kenny Dillingham go sideways very quickly.

Starting quarterback Jaden Rashada, who did not play Saturday against Fresno State, will be out 4-6 weeks with an injury that coach Kenny Dillingham said “has been lingering since high school” and it was “re-aggravated” in the Week 2 loss to Oklahoma State.

Depending on when Rashada can return to the field, Dillingham said the staff will look to preserve a redshirt for the freshman and save the season.

Dillingham also revealed that Trenton Bourguet, who started ASU’s 29-0 loss to Fresno State in place of Rashada, will undergo an MRI to determine the severity of a lower leg injury suffered in the first quarter of Saturday’s game. Bourguet, according to reports from the stadium, left on crutches with a boot on his left foot.

Drew Pyne came in to replace Bourguet — making his season debut — but he was then forced out of the game with what Dillingham said was a different “muscular injury” to the same leg he injured in training camp.

“I’ve never in my career been involved in a game like that,” Dillingham said.

Neither quarterback was particularly effective — 11-for-21 combined, 99 yards, three picks — but their injury-forced exits leave ASU with the prospect of facing USC to open Pac-12 play with its fourth-string quarterback.

The Sun Devils (1-2) turned the football over eight times and played three different quarterbacks before limping to their first home shutout since 1988.

Limping is the appropriate word there. ASU is beat up in a way you just don’t see from teams this early in the season. And the Sun Devils’ offensive injury issues got worse Saturday night.

The Sun Devils also faced Fresno State without tight end Jalin Conyers and reserve running back DeCarlos Brooks. Isaia Glass, Cade Briggs, and Ben Coleman remain out on the offensive line. Emmit Bohle suffered a season-ending injury a week ago.