http://myespn.go.com/blogs/afceast/0-8-248/NFL-hoping-players-avoid-rookie-mistakes.html PALM BEACH GARDENS, Fla. -- Miami Dolphins rookie cornerback Vontae Davis faced a semicircle of cameras and microphones to talk about a disconcerting incident he recently endured. Behind him, Oakland Raiders receiver Louis Murphy crept, grasped the hem of Davis' shorts and yanked them down. Symbolic, really.