USC was seeking depth at tight end, especially after Xavier Grimble announced he would forgo his final season of eligibility.
The Trojans bolstered their tight end corps Wednesday by signing Bryce Dixon of Ventura St. Bonaventure High to a national letter of intent.
The 6-foot-4, 240-pound Dixon joins senior Randall Telfer and junior Jalen Cope-Fitzpatrick as scholarship tight ends.
Trojans Coach Steve Sarkisian was impressed by Dixon's athleticism.
"I saw him play basketball and he had four dunks in one game," Sarkisian told the school's website.
"He'll be a great fit our system that really features the tight end."
Austin Seferian-Jenkins, who played tight end at Washington under Sarkisan, won the John Mackey Award as the nation's top tight end in December.