LOS ANGELES — Frustration was boiling over in the midafternoon Saturday at LA Memorial Coliseum.
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Wisconsin running back Tawee Walker celebrates after scoring a touchdown against Southern Cal during the first half Saturday in Los Angeles.
Southern California quarterback Miller Moss dives in for a touchdown as Wisconsin safety Hunter Wohler and cornerback Nyzier Fourqurean defend during the second half Saturday in Los Angeles.
Photos: Wisconsin opens Big Ten football play at Southern Cal
Wisconsin safety Preston Zachman intercepts a pass intended for Southern California wide receiver Zachariah Branch during the first half of their game Saturday in Los Angeles.
Wisconsin quarterback Braedyn Locke throws a pass against Southern California during their game Saturday in Los Angeles.
Southern California quarterback Miller Moss throws a pass against Wisconsin during the first half Saturday in Los Angeles.
Southern California running back Quinten Joyner is dragged down by the Wisconsin defense during the first half Saturday in Los Angeles.
Southern California wide receiver Ja'Kobi Lane makes a touchdown catch as Wisconsin cornerback Nyzier Fourqurean defends during the first half Saturday in Los Angeles.
Southern California wide receiver Ja'Kobi Lane makes a touchdown catch as Wisconsin cornerback Nyzier Fourqurean and safety Hunter Wohler defend during the first half Saturday in Los Angeles.
Wisconsin running back Tawee Walker jumps in for a touchdown as Southern California cornerback Jaylin Smith defends during the first half Saturday in Los Angeles.
Wisconsin running back Tawee Walker, celebrates after scoring a touchdown against Southern California during the first half Saturday in Los Angeles.
Wisconsin running back Tawee Walker runs in for a touchdown as Southern California cornerback Jaylin Smith, left, and defensive end Jamil Muhammad give chase during the first half Saturday in Los Angeles.
Wisconsin running back Tawee Walker celebrates after scoring a touchdown against Southern Cal during the first half Saturday in Los Angeles.
Southern California quarterback Miller Moss is tackled by Wisconsin linebacker John Pius during the first half Saturday in Los Angeles.
Wisconsin coach Luke Fickell congratulates safety Preston Zachman after he intercepted a pass during the first half Saturday in Los Angeles.
Southern California wide receiver Duce Robinson goes after a muffed punt as Wisconsin wide receiver Will Pauling runs in to recover it during the first half Saturday in Los Angeles.
Southern California linebacker Mason Cobb, left, celebrates with safety Bryson Shaw, center, and cornerback Prophet Brown after he intercepted a pass and ran it in for a touchdown during the second half Saturday in Los Angeles.
Southern California linebacker Mason Cobb runs an interceptions in for a touchdown against Wisconsin during the second half Saturday in Los Angeles.
Southern California wide receiver Ja'Kobi Lane makes a touchdown catch as Wisconsin cornerback Xavier Lucas defends during the second half Saturday in Los Angeles.
Southern California quarterback Miller Moss dives in for a touchdown as Wisconsin safety Hunter Wohler and cornerback Nyzier Fourqurean defend during the second half Saturday in Los Angeles.
Southern California wide receiver Duce Robinson gestures after making a catch against Wisconsin during the second half Saturday in Los Angeles.
Southern California wide receiver Ja'Kobi Lane celebrates Saturday after the Trojans defeated Wisconsin in Los Angeles.
Wisconsin coach Luke Fickell stands on the sideline during the second half Saturday in Los Angeles.
Southern Cal coach Lincoln Riley talks with quarterback Miller Moss during the second half Saturday in Los Angeles.
Southern Cal cornerback Jacobe Covington breaks up a pass intended for Wisconsin wide receiver C.J. Williams during the second half Saturday in Los Angeles.
Southern Cal quarterback Miller Moss walks off the field Saturday after the Trojans defeated Wisconsin 38-21 in Los Angeles.
Southern Cal wide receiver Duce Robinson can't hold on to a pass as Wisconsin cornerback Ricardo Hallman defends during the second half Saturday in Los Angeles.
Wisconsin cornerback Nyzier Fourqurean breaks up a pass in the end zone intended for Southern Cal wide receiver Kyron Hudson during the second half Saturday in Los Angeles.
Southern Cal linebacker Mason Cobb gestures as he walks off the field Saturday after the Trojans defeated Wisconsin 38-21 in Los Angeles.
Southern Cal wide receiver Duce Robinson celebrates after scoring a touchdown against Wisconsin during the second half Saturday in Los Angeles.
Southern Cal quarterback Jayden Maiava fends off Wisconsin linebacker Christian Alliegro as he runs the ball during the second half Saturday in Los Angeles.
Southern Cal wide receiver Duce Robinson makes a catch as Wisconsin safety Austin Brown defends during the second half Saturday in Los Angeles.
Southern Cal wide receiver Duce Robinson makes touchdown catch as Wisconsin safety Hunter Wohler defends during the second half Saturday in Los Angeles.
Southern Cal running back Woody Marks avoids a tackle by Wisconsin linebacker Leon Lowery Jr. during the first half Saturday in Los Angeles.
Southern Cal quarterback Miller Moss gestures as he walks off the field Saturday after the Trojans defeated Wisconsin 38-21 in Los Angeles.
Wisconsin coach Luke Fickell speaks to an official during the first half Saturday in Los Angeles.
Wisconsin wide receiver Bryson Green upends after making a catch while under pressure from Southern Cal cornerback DeCarlos Nicholson during the first half Saturday in Los Angeles.
Wisconsin wide receiver Vinny Anthony II is tackled by Southern Cal linebacker Garrison Madden during the second half Saturday in Los Angeles.
Southern Cal quarterback Miller Moss dives in for a touchdown as Wisconsin safety Hunter Wohler and cornerback Nyzier Fourqurean defend during the second half Saturday in Los Angeles.

