The Tampa Bay Buccaneers have to fear that they'll lose Doug Martin in 2016 NFL free agency. According to Rand Getlin of NFL Network, the Oakland Raiders are "entering the Doug Martin sweepstakes."

The Raiders have some $60 million in cap space, according to Over The Cap, and they just agreed to terms with Kelechi Osemele, the top guard available in free agency. Oakland is looking to spend big, and they can easily afford to give Doug Martin an expensive deal -- something the Bucs are unwilling to do, even though they would like to see Martin back in Tampa.

The Bucs running back had one of his most productive days against the Oakland Raiders. Back in 2012. he ran for 251 yards on 25 carries, including four touchdown runs.

If the Dougernaut does sign with Oakland, the Bucs will have to look elsewhere for a complement to Charles Sims. They've already been linked to Chris Ivory, and more tentatively to Lamar Miller. The former would make sense as a cheap complement, as Miller is more similar to Sims and likely to be more expensive than Ivory.