Interest in Seahawks QB Matt Flynn is picking up.

According to CBS Sports, the Jaguars, Bills and Raiders are kicking the tires on Seattle’s $5.25 million backup.

Flynn, 28, provides an alternative for teams unimpressed by this year’s crop of rookie QBs.

CBS says several sources have pointed to Jacksonville as the most likely trade destination. New Jags head coach Gus Bradley is familiar with Flynn from his time as Seattle’s defensive coordinator. And with Chad Henne and Blaine Gabbert occupying the top spots on the depth chart, an upgrade is necessary.

In Oakland, Carson Palmer’s clock is ticking. He’s reportedly unwilling to substantially slash his $13 million base salary for 2013. Worth about a third of that at this stage of his career, look for a release in the coming weeks.

Buffalo is perhaps the most QB hungry team league-wide. After cutting underachieving overachiever Ryan Fitzpatrick, Tarvaris Jackson now sits atop the depth chart. The Bills will almost certainly address the position via the draft – even if a deal with Flynn materializes. Unlikely to land him, though, they’re expected to target WVU’s Geno Smith with the 8th overall pick. Jacksonville, Oakland, Cleveland and Arizona – all picking in the top-7 – might force a trade up.

Still, Flynn and his one-game-of-fame – a 480 yard, 6 TD outing Week 17 of 2011 – remains far from a sure thing.