Saturday marks the day when all NFL rosters have to be trimmed down to the minimum 53 men.
For the Philadelphia Eagles, there are a few roster battles that could determine the quality of depth at their respective positions.
Starting at center, the battle between rookie Jason Kelce and veteran Jamaal Jackson is a critical one for the Eagles going forward. Kelce appears to have the edge despite his rookie status. Offensive line coach Howard Mudd favors the smaller Kelce over the larger and experienced Jackson.
However, this battle reaches deeper than between these two. Mike McGlynn, who started in place of the injured Jackson in 2010, appears to be on the outside looking in. Given that his natural position is right guard, McGlynn may be saved from being cut thanks to the presence of rookie right guard Danny Watkins.
McGlynn's ability to play multiple positions on the offensive line may be what keeps him on the roster over Jackson.
At tight end, Brent Celek is entrenched as the starter. Behind him on the depth chart are Clay Harbor, Donald Lee and Cornelius Ingram.
Harbor is a capable receiving tight end, but leaves something to be desired in the blocking game.
Lee is a veteran who excels at blocking. If Lee would make the roster, it would be primarily as a blocker.
Ingram is an enigma. Each year since being drafted, Ingram has come up with a season-ending injury. This year, Ingram is healthy, but it may be too little too late.
The Eagles may not want to carry three tight ends, but it would be hard to pass up on keeping Lee on the roster. With a shaky offensive line, Lee could help in pass protection and the running game as well.