<img alt="" height="1" width="1" />Robert Nkemdiche on [b]Wikipedia[/b] MaxPreps (blog) How does a budding sports star know when he's finally arrived on the national scene? Perhaps when he has a Wikipedia page as a junior in high school. That's the reality facing Grayson (Loganville, Ga.) defensive end Robert Nkemdiche, the 6-foot-5, ...