Photos: USC vs. Idaho

USC tailback Ronald Jones heads towards the end zone against Idaho cornerback D.J. Hampton in the fourth quarter on Saturday at the Coliseum.

USC quarterback Cody Kessler watches the action against Idaho from the sidelines in the fourth quarter on Saturday at the Coliseum.

USC linebacker Don Hill brings down Idaho tight end Buck Cowan during a game last season.  (Luis Sinco / Los Angeles Times)

USC linebacker Cameron Smith brings down Idaho running back Elijah Penny in the second quarter on Saturday at the Coliseum.

USC linebacker Don Hill brings down Idaho running back Aaron Duckworth in the fourth quarter on Saturday at the Coliseum.

USC wide receiver Adoree’ Jackson runs after a catch against Idaho in the second quarter of their game Sept. 12 at the Coliseum.

USC wide receiver Juju Smith-Scguster gets a catch against Idaho in the second quarter on Saturday at the Coliseum.

USC tailback Tre Madden dives into the end zone for a touchdown against Idaho in the second quarter Saturday at the Coliseum.

Trojans tailback Tre Madden (23) celebrates with teeammates after scoring a touchdown against Idaho in the second quarter Saturday.

USC tailback Tre Madden eludes a tackle by Idaho strong safety Russell Siavii on the way to a touchdown in the second quarter Saturday at the Coliseum.

Trojans tailback Ronald Jones (25) gets a downfield block during a long run against the Vandals in the second quarter.

USC linebacker Osa Masina brings down Idaho receiver Jacob Shannon in the first quarter Saturday.

Trojans tailback Justin Davis is brought down by Idaho’s Dorian Clark after a long gain in the first quarter Saturday.

Trojans tailback Justin Davis dives into the end zone for a touchdown against Idaho in the first quarter Saturday.

USC quarterback Cody Kessler looks downfield for a receiver against Idaho in the second quarter Saturday.

USC linebacker Scott Felix applies pressure as Idaho quarterback Matt Linehan prepares to pass during the first quarter of a game Sept. 12, 2015.

Idaho quarterback Matt Linehan fumbles the ball as he’s sent airborne by USC defenders in the first quarter.

USC receiver Juju Smith-Schuster makes a catch in front of Idaho cornerback Jayshawn Jordan before breaking free on a 50-yard touchdown play in the first quarter of the season opener.

USC linebacker Su’a Craven (21) chases down scrambling Idaho quarterback Matt Linehan for a sack in the second quarter Saturday.

USC Coach Steve Sarkisian leads the Trojan squad against Idaho in the second quarter on Saturday at the Coliseum.