RENTON, Wash. -- The Seattle Seahawks are signing free-agent quarterback Sean Mannion, a source told ESPN's Adam Schefter on Saturday.
The signing adds apparent competition for one of the backup jobs behind Russell Wilson and reunites the 29-year-old Mannion with new Seahawks offensive coordinator Shane Waldron. Waldron was an assistant with the Los Angeles Rams for two of the quarterback's four seasons with the team.
The Seahawks have had Danny Etling and Alex McGough as their third and fourth quarterbacks behind Wilson and Geno Smith, who has served as Wilson's backup the past two seasons.