The two-star prospect is the sixth-rated long snapper in the country, according to the 247 Sports composite.
Rubio Long Snapper Damon Johnson has committed to USC as a preferred walk-on! https://t.co/lbQryfNc0S #FightOn pic.twitter.com/UZwyabTSqP
— Rubio Long Snapping® (@TheChrisRubio) January 19, 2016
Johnson was committed to West Virginia until last week when he backed off that pledge following the departure of Mountaineers special teams coach Joe DeForest.
The commitment comes in the wake of the return of special teams coordinator John Baxter to the USC football family.