Tarvaris Jackson, the quarterback who's backed up starter Russell Wilson the past two years, will return to Seattle for his 10th NFL season.

The 32-year-old signal caller agreed to terms with the Seahawks on Tuesday after spending the previous three months as an unrestricted free agent. 

The move marks the start of Jackson's fourth year in Seattle, as he went 7-7 as a starter for the team in 2011. With Wilson claiming the starting job as a rookie the next year, Jackson was traded to the Buffalo Bills, where he spent 2012 before re-joining the Seahawks in a backup role in 2013-14.

This offseason, B.J. Daniels has primarily been used as a wide receiver in Seattle's offense and as a returner on special teams. Daniels' position switch has left Wilson and R.J. Archer - who has yet to throw an NFL pass - as the only two arms on the Seahawks roster. In Jackson, the team welcomes back a familiar and respected face within the locker room whose knowledge of coordinator Darrell Bevell's offense runs deep, with Jackson having worked alongside Bevell since he entered the League in 2006 as a member of the Minnesota Vikings.

Jackson has seen action in just four games for the Seahawks over the last two years, completing 11 of his 14 attempts for 151 yards and a touchdown.