WATCH: Ronald Roberts Jr.'s impressive warm-up slam dunk (Video)

Philadelphia 76ers power forward Ronald Roberts Jr. broke out an incredible warm-up slam dunk prior to Friday night's game in Brooklyn. After throwing the alley oop to himself, he went behind his back and finished with a windmill jam.

As of this writing, Roberts has yet to enter the game, but his dunk was most certainly deserving of a shot in this year's Slam Dunk Contest. Keep an eye on this guy.

Vine via Sixers. H/T FTW.

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About Michael James

Moonlighting as a blogger to pursue my interest and enjoyment of sports. Former high school and Division I athlete (now a "retired" family man) that loves watching and discussing all sports. Follow me on Twitter (@HoldoutSports) and like Holdout Sports on Facebook.