A breakdown of the Oakland Raiders' 2018 free-agent signings.
The Raiders have agreed to terms with running back Doug Martin, who played the past six years for the Tampa Bay Buccaneers. Here’s a closer look at the impending signing:
Grade: C. The 29-year-old Martin, also known as the Muscle Hamster due to his relatively diminutive size at 5-foot-9 and 223 pounds, has been a force before at running back in the NFL ... though not since 2015.
What it means: Jon Gruden is trying to replicate the "Thunder and Lightning" running back duo of Tyrone Wheatley and Napoleon Kaufman from his first stint as Raiders when he had Marshawn Lynch and Martin.