2011 NFL Transition tagged players

Philadelphia Eagles - David Akers K

If a player signs a contract after receiving the transition tag, his original team can not use the tag again on any player until the contract has expired. The exception is if the player first signs a transition offer sheet, which is a one-year contract equal to the average salary of the top ten players in the league at the player's position, or a twenty percent salary increase, whichever is greater.