Marvell Tell, a defensive back from Encino Crespi High, announced his decision to attend USC on Saturday at the Army All-American Bowl.
"It's where I feel like I fit for the next four years," said Tell, who chose the Trojans over Texas A&M and Oregon.
Tell, 6-foot-2 and 175 pounds, was the second defensive back to commit to USC at the Army Bowl. Riverside Poly's Ykili Ross also announced.
Four defensive backs have committed to the class, including Pasadena Muir's Taeon Mason and Pleasanton Foothill's Isaiah Langley.
In an unofficial count, three 2015 scholarships remain for the Trojans. National signing day is Feb. 4.