Photos: USC vs. Wisconsin in the Holiday Bowl

Wisconsin receiver Austin Traylor does a celebratory dance in the end zone after a touchdown reception against USC in the third quarter.

USC defensive back Adoree’ Jackson (2) breaks up a pass in the end zone intended for Wisconsin receiver Robert Wheelwright (15).

Wisconsin quarterback Joel Stave finished with 217 yards passing and one touchdown with no interceptions.

USC Coach Clay Helton walks the sideline during the loss to Wisconsin.

Wisconsin kicker Rafael Gaglianone (10) celebrates with a teammate after making one of his three field goals against USC.

Derek Watt -- yes, he J.J. Watt’s younger brother -- went to Wisconsin, where he helped open up running lanes for a running back who ran for 2,587 yards and 29 touchdowns in 2014. That running back? Melvin Gordon, the Chargers’ first-round pick last year. Gordon’s first NFL season was a disappointment, so the Chargers hope reuniting Gordon with his lead blocker in college could help fix their running game woes.

Wisconsin receiver Troy Fumagalli makes a catch against USC defensive back John Plattenburg (24) in the second quarter.

USC running back Ronald Jones II tries to power past Wisconsin cornerback Natrell Jamerson (12) and linebacker T.J. Watt during the first half Wednesday night.

Trojans receiver JuJu Smith-Schuster can’t haul in a pass during the first quarter of the Holiday Bowl on Wednesday night in San Diego.

USC quarterback Cody Kessler (6) throws an incomplete pass as he is hit by Wisconsin linebacker Chris Orr in the first half.

USC running back Justin Davis dives in for a one-yard touchdown against Wisconsin in the second quarter.

Badgers quarterback Joel Stave scrambles from the pressure of Trojans linebacker Scott Felix in the seocnd quarter.

Wisconsin running back Corey Clement (6) scores a touchdown against USC in the second quarter.

USC defenders Chris Hawkins (4), Su’a Cravens (21) and Osa Masina (58) bring down Wisconsin running back Corey Clement in the second quarter.