This great article on XJ came over the twitters via SoCal Recruit Spot:
The Dunk. Tens of thousands have seen it. Xavier Johnson secures a defensive rebound and begins dribbling down court. As he approaches the key a defender swipes at the ball and Johnson cuts inside to evade. He picks up his dribble and leverages a powerful jump off his right foot. ’11 #1 Overall recruit Austin Rivers (son of Doc Rivers) has trailed the play and enters the screen. Looking to deny Johnson an easy two, Rivers times his jump to that of Johnson and explodes upwards to the rim. All the makings of a highlight worthy swat…except that’s not the way it went down....
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http://socalrecruitspot.wordpress.com/2012/05/14/xavier-johnson-just-ask-austin/