Jayson Cheesman had eight points and eight rebounds for the Thunderbirds (9-12, 7-5 Big Sky), who won their fourth straight.
Southern Utah never trailed after Heuir tied the score with 15:31 remaining in the first half. Northern Arizona got within 60-54 with 6:42 left, but Stevenett scored five points to push the cushion back to double digits.
The dust has settled, players having decided whether they are headed to the NBA or back to college. Who won? Who lost? Well, Villanova is pretty happy. USC, meanwhile, not be as thrilled.
The 2017 recruiting class is short on point guards, with Trevon Duval leading only eight prospects from the ESPN 60 who are still available.
ESPN college basketball reporter Andy Katz looks into the two decommitments from the NBA draft and what they're looking forward to.