Zion Williamson Dunks from The free throw line vs rj barrett. Zion Williamson Duke PRACTICE HIGHLIGHTS with Zion Williamson Dunks From Free Throw Line. Zion Williamson is an American college basketball player for the Duke Blue Devils. Zion Williamson & RJ Barrett dunk from the free-throw line during duke basketball practice. Zion Williamson has dunk-off from the free throw line with duke teammate Rj Barrett. RJ BARRETT VS ZION WILLIAMSON FREE THROW LINE DUNKS. Zion Williamson Shocks His Teammates With Free Throw Line Dunk. Duke Freshman Zion Williamson Jump shot and jump shooting LOOKING SMOOTH. Zion Williamson is listed at 6‘7“ 285 lbs. Zion Williamson Breaking RECORDS at Duke. Freshman Zion Williamson already breaking records at Duke basketball. zion williamson duke first game highlights with zion williamson duke vertical.