Former Harlem Globetrotter Issac White is better known as simply “Sir Issac,” and the Houston native brought out one of his most insane dunks over the weekend in Phoenix. Watch above, as Sir Issac bangs home a near-impossible dunk over a 7-footer, then keep in mind that Issac is barely 5-10. Even 1994 NBA Slam Dunk Champ Isaiah “JR” Rider had to give his props from the judges’ table. It all went down at Kenny Dobbs’ “King of the Dunk Game” dunk contest on Saturday. To see more from that dunk contest, hit up Ballislife.