Madden Riordan dreamed of playing for the USC Trojans as a kid, and ever since he arrived on campus, the freshman safety has put everything into positioning himself to make it a reality on Saturdays. And as he continues to make an impression in fall camp, and has added weight and muscle, Riordan is emerging as a sleeper freshman to make an impact this season. USC recently posted a video of Riordan coming up with an interception in fall camp. USC Trojans freshman safety Madden Riordan | USC Trojans on SIRiordan likely won’t start this season, but his ability to change games in an instant is valuable. Prophet Brown is another player that could end up playing nickel or safety this fall.