March 22 (UPI) -- The Oakland Raiders signed unrestricted free-agent quarterback Mike Glennon and former New York Giants safety Curtis Riley, the team announced Friday. The team didn't disclose terms of the contracts for both players.
The 29-year-old veteran quarterback becomes the backup to Raiders starter Derek Carr. Glennon spent last season with the Arizona Cardinals and mentored rookie signal-caller Josh Rosen. Glennon played in two games as Rosen's backup and completed 15-of-21 passes for 174 yards and a passer rating of 112.0.