Porter Maberry, 5'5' dunk sensation from Grand Rapids, featured in Sports Illustrated video

It's taken a couple of years, but Sports Illustrated has discovered the talents of Porter Maberry, the 5-foot-5 dunking sensation and Ottawa Hills High School graduate. Maberry, who sprung to notoriety in 2012 when he made a video of his dunking skills and it went viral, is featured in a piece on SI's Extra Mustard video feature.

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