Maddox was very reliable last season with the Eagles playing in every game. However, he's had many significant injuries in year's past including pec surgery, toe surgery, severe concussion, hamstring, ankle, and knee.

Anzalone, Barnes and Campbell are back for another run. Rodriguez is on the shelf, but the Lions have some intriguing depth battles to watch for the next month-plus.

We’ve seen growth in training camp translate to the regular season. It’s helped guys solidify their roles and get paid. With camp set to begin Sunday, it’s a good time to look at players who could benefit the most from strong performances.