One of the most fascinating position battles going into training camp for the Philadelphia Eagles that isn't being talked about as often is the third and final spot at tight end.

The most productive WR last year for the Patriots was DeMario Douglas, who caught 66 passes for 621 yards and three touchdowns working primarily out of the slot. He was followed by Kayshon Boutte, who caught 43 passes for 589 yards and three touchdowns and Kendrick Bourne, who added another 28 receptions for 305 yards and a score.

Why Eagles won't label Sydney Brown the front-runner for the safety job over a rookie and a former practice-squad player

With NFL training camp season upon us, Jeremy Bergman provides a refresher on the Philadelphia Eagles' roster changes, position battles and notable subplots.