The McDonald’s High School All-American Game is this Wednesday, and yesterday a few of the kids who’ll be playing took part in a pretty spectacular dunk contest. Chris Walker edged out Andrew Wiggins, Jabari Parker and others to win the whole thing (full highlights below), while Wiggins threw down what we think was probably the sickest dunk of the night, which you can peep above. Videos via our homies at BallisLife.