The offensive lineman comes to the Falcons with two years of eligibility remaining.
The graduate transfer was third on the Red Wolves last season in receptions, receiving yards.
The former four-star recruit would’ve had to sit out the 2017 season if he had joined the Wildcats as expected.
Calvin Ashley was the highest-rated member of the Tigers’ recruiting class this year, and will compete for starting LT job.
USC received 28 first-place votes, while defending champ Washington was right behind with 22.