Ryan left Oklahoma State after the 1999 season to join Bill Belichick's Patriots staff, and hasn't coached in college since.

USC is hiring former NFL assistant coach Rob Ryan to be the Trojans' new assistant head coach for defense and linebackers coach, the school announced Saturday.

USC coach Lincoln Riley filled the final hole on his coaching staff, naming longtime NFL defensive coordinator Rob Ryan the Trojans' linebackers coach.

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Just two days after USC secured a contract extension with D'Anton Lynn as the program's defensive coordinator, head coach Lincoln Riley has bolstered his staff further by adding another assistant with NFL experience, joining former Rams and Chargers defensive line coach Eric Henderson.

USC is hiring longtime NFL assistant Rob Ryan as its linebackers coach, the program announced Saturday. Ryan, 62, will also hold the title of assistant head coach for defense as the Trojans enter their second season in the Big Ten needing to make more defensive strides under fourth-year head coach Lincoln Riley.

Longtime NFL defensive coordinator Rob Ryan has been named Southern California’s assistant head coach for defense and linebackers coach. Ryan replaces Matt Entz, who became Fresno State’s head coach l

The Las Vegas Raiders senior defensive assistant with 35 years of coaching experience, including 24 in the NFL, will oversee the Trojans’ linebackers

With the linebackers coaching post open on his Southern Cal staff since Matt Entz departed to take over at Fresno State, Lincoln Riley and heralded defensive coordinator D'Anton Lynn are working to add longtime NFL veteran Rob Ryan to coach the Trojans linebackers, FootballScoop has learned.