According to Adam Schefter of ESPN, the team is "strongly considering" a move for Lynch. Although he retired after the 2015 season, it would still require a trade with Seattle or a release to complete the deal.
Ian Rapoport of NFL Network reported the Raiders tried to acquire Lynch last season, but the running back opted to remain retired. Mike Florio of Pro Football Talk reported that this time, there's a "very good chance" Lynch comes out of retirement.
However, Gregg Bell of the News Tribune reported Lynch remains retired, and a source said he has not asked the Seahawks to be released.
Mike Garafolo of NFL Network reported Lynch is "in a bit of a holding pattern" and is deciding whether or not to return.
A source told Fox Sports' Peter Schrager that Lynch "has a lot left in a very big tank."
The 30-year-old is an Oakland native and went to four Pro Bowls in his final five years before retiring.
Lynch last appeared in the NFL in 2015, which ended up being an injury-filled year that limited him to seven games. He ended with 417 rushing yards and three touchdowns. He returned for the postseason but managed just 20 rushing yards on six carries in a loss to the Carolina Panthers.
He retired following the season and left his decision in no uncertain terms in an interview on 60 Minutes Sports.
"I'm done. I'm not playing football anymore," Lynch said, per the Associated Press.
Florio reported in September the running back had considered a return, but that never came to fruition.
The Raiders have a pair of young change-of-pace running backs in DeAndre Washington and Jalen Richard, but the team now lacks a consistent early-down producer with Latavius Murray leaving for the Minnesota Vikings in free agency.
Considering Lynch has 9,112 rushing yards and 74 touchdowns on the ground in his career—plus nine more scores in 11 postseason games—he could give the AFC contenders a boost, even at this stage.