Every year, undrafted free agents around the league defy the odds and make an impact on their respective teams. Some, like Bengals Linebacker Vontaze Burfict, even start from Week One, as was evident last season. The 2013 Undrafted Rookie class contains a number of players who have the ability and the circumstances to contribute this season. Whether it be in starting roles or as a critical backup and special teams player, expect these players to breakout and entrench themselves as legitimate NFL players this season.