Visit Our New Site How does Arian Foster fit in Miami Dolphins' depth chart The Miami Dolphins added another layer to their running back competition Monday when they signed veteran Arian Foster to a one-year contract that can be worth as much as $3.Martellus Bennett Jersey.5 million.Jimmy Graham Jersey. How does Foster fit into Miami's depth chart?Luke Kuechly Jersey? Here's a quick player-by-player look: Foster: He will turn 30 before the regular season begins,Nelson Agholor Jersey, making Foster the oldest member of the Dolphins' backfield.Mike Evans Jersey. Such age and experience can be valuable,Lamar Miller Jersey, but Foster will face doubts about his durability and ability to return to his Pro Bowl form.Bryce Petty Jersey. Recent NFL history offers few examples of rushers whose production has dipped only to spike again after age 30,Ryan Tannehill Jersey, although Foster can look to the resurgence of Chris Johnson last season in Arizona as a best-case scenario.Donte Moncrief Jersey. If the Dolphins get that sort of boost from Foster,Teddy Bridgewater Jersey, they would be thrilled. The spotlight had been on Ajayi, the Dolphins' fifth-round pick last season, to fill the void left by Lamar Miller's departure to Houston. Even with Foster now in the fold, Ajayi will still have a chance to earn the starting job, and he remains the top option to fill in for Foster if the veteran gets injured again