Seahawks sign QB Brady Quinn

The Seattle Seahawks announced they have signed quarterback Brady Quinn as the team's backup to Russell Wilson.

Quinn, Matt Leinart, Tyler Thigpen and Seneca Wallace threw for the Seahawks coaching staff on Monday.

Wallace, meanwhile, is scheduled to work out for the Oakland Raiders on Wednesday.

Quinn spent last season with the Kansas City Chiefs, beginning the season as the backup to Matt Cassel and finishing as the starter for the NFL's worst team.

He completed a career-best 56.9 percent of his pass attempts (112 of 197) for 1,141 yards, two touchdowns and eight interceptions last season. He is a career 53.8 percent passer, throwing for 3,043 yards with 12 touchdowns and 17 interceptions in 24 career games.

ESPN NFL Insiders Ed Werder and Adam Schefter contributed to this report.