The Tampa Bay Buccaneers have traded Mark Barron to the St. Louis Rams for a fourth and sixth rounder.

Barron is owed $4.6 million in guaranteed next season.

The Tampa Bay Buccaneers are fielding offers for Doug Martin, according to sources.

Teams have already approached Tampa Bay about Martin, and some around the league believe that the Buccaneers would be willing to deal him for the right price before Tuesday's 4 p.m. ET trade deadline, according to sources.

Martin is averaging just 2.9 yards per carry this season, rushing for 139 yards and a touchdown. Martin was a breakout running back in his rookie season in 2012 but has since been limited by injuries.

Marshawn Lynch has not been put on the trading block by the Seattle Seahawks, but both sides do not expect him to remain with the franchise in 2015.

The Seahawks have grown tired of Lynch's behavior, including not showing up for their White House Super Bowl ceremony, holding out in training camp and his possible contribution to locker room issues.

The Seahawks are unlikely to trade Lynch since they are currently thin at running back behind him.

The Detroit Lions have fielded calls on the availability of Ndamukong Suh via trade, but they don't plan on trading anyone ahead of the deadline.

"I don't have any plans to trade anybody," general manager Martin Mayhew said. "I'll leave it at that."

Suh will be a free agent this offseason and is widely expected to sign elsewhere.

"We kind of talk to everybody around the league, get calls from different teams and things like that," Mayhew said. "But I don't anticipate us making any moves at the trade deadline."

The Tampa Bay Buccaneers have been fielding trade calls for Vincent Jackson, according to a report from Ian Rapoport.

"We're not trying to shop any of our players," said Lovie Smith.

Jackson has been the Buccaneers' best offensive player over the past three seasons.

The Seattle Seahawks attempted to trade Percy Harvin to the Denver Broncos for Julius Thomas.

The Broncos never hesitated in turning down the offer, even with Thomas scheduled playing on an expiring contract.

Harvin was traded by the Seahawks to the New York Jets.

The Seahawks have agreed to trade wide receiver Percy Harvin to the Jets, sources confirmed to ESPN.

Seattle will receive a conditional draft pick in 2015, which will range from a second- to fourth-round pick, a source told ESPN's John Clayton.

Fox Sports first reported the trade, which it says is contingent on Harvin passing a physical. 

Mike Williams' agent has requested permission from the Buffalo Bills to gauge interest for a trade.

Doug Whaley said that the Bills will entertain offers, but are not actively shopping Williams.

"I said, 'We like Mike Williams. We expect him back and we expect big things from him,'" Whaley said. "But like anybody, if he gets us compensation worthy of a No. 1 wide receiver -- which he claimed he is -- then we would entertain it.

"He's taken it as permission, but I see it as, anybody on this team, we have to do our due diligence, and if there's somebody out there that is willing to give us compensation that we think is fair, and would help us in the long run, we would entertain it. That doesn't say we're gonna do it, but we would entertain it."

Williams was inactive on Sunday.

Williams has eight catches for 142 yards and one touchdowns in five games this season for the Bills.