Duke transfer Derryck Thornton has committed to USC, his father told CBS Sports on Friday.
Thornton must sit out the 2016-17 season, per NCAA rules, but he will have three years of eligibility remaining.
The 6-foot-2 point guard averaged 7.1 points and 2.8 assists in 26.0 minutes last year for the Blue Devils.
With USC losing two starters from last season, Julian Jacobs and Nikola Jovanovic, early to the NBA Draft declaration, Thornton is a huge acquisition for the Trojans.
Thornton was supposed to be a member of the 2016 class, but reclassified to 2015 last summer.
As a prospect, he was a five-star recruit and No. 14 player in the Class of 2015, according to the 247Sports Composite.