Johnson sparked Fresno State's decisive run, scoring 10 points. His jumper culminated the surge, giving the Bulldogs a 51-36 cushion with 6:20 remaining.
Braeden Anderson made his debut for Fresno State, going 0 for 2 from the floor with two rebounds in 12 minutes. The 6-foot-9 freshman came to Fresno State after failing to gain Big 12 approval as a partial qualifier at Kansas in 2011 and had to sit out the first 20 games of this season due to NCAA transfer rules.
The Bulldogs snapped a four-game losing streak.
Mike Krzyzewski says he has good reason to be excited for next season thanks to a combination of Duke's incoming freshmen and a core of experienced upperclassmen.
Georgia guard Juwan Parker has been awarded a medical redshirt, leaving him with two years of eligibility, after missing the 2015-16 season with a partially torn Achilles tendon.
Forward Trevon Bluiett has withdrawn from consideration from the NBA draft and will return to Xavier for his junior season.