At the NFL Rookie Symposium in Palm Beach Gardens, Fla., Jets rookie RB Shonn Greene told CBSSports.com in an exclusive interview that the moniker “fourth-quarter back” that his coaches have labeled him is appropriate. Built with a huge upper body, Greene is looking forward to making a sizable impact for a second-day draft choice. “I think it plays well into how I play the game of football, very tough, down-and-dirty and grind time, fourth quarter time,” Greene said.