1. How will the backup Eagles quarterbacks perform?

Tim Tebow and Mark Sanchez will likely get the majority of reps with the first team. Sam Bradford is sitting out which could be a whole other issue for Chip Kelly and the Eagles. Tim Tebow has not been seen by a wide NFL audience for a long time so it will be interesting to see whether or not his throwing mechanics have improved. Sanchez will likely be the Eagle's primary backup quarterback but anyone one of these QB's could be forced to take over the rest of the season if Bradford were to ever get injured.

2. Is Phillip Dorsett the next big thing?

Dorsett is being compared to DeSean Jackson with his level of speed and route running prowess. Can Dorsett become Andrew Luck's go to weapon of choice? Dorsett also has to compete with Andre Johnson and TY Hilton for receptions so he should make an impact during the preseason if he really wants to be a factor in the offense.

3. How will DeMarco Murray and Ryan Mathews perform?

Murray and Mathews snap counts will probably be limited, but with these injury prone backs it will be interesting to see what the Eagles do to keep them healthy.

4. How will Chip Kelly run the Eagle's offense?

The Eagle's offense looks pretty much unrecognizable without LeSean McCoy and Jeremy Maclin so who the primary weapons will be are still somewhat of a mystery. Kelly has a variety of options at his disposal but only Chip Kelly knows how it will actually play out.

5. How will Frank Gore look?

Frank Gore has had a legendary career so far with the 49ers. Gore is finally on a team that is peaking at the right time and could give him the best chance he has had at winning a championship. Gore will be limited if he plays at all but it will be worth noting if he is able to play for a bit in the first preseason game.