The Oakland Raiders signed free agent quarterback Mike Glennon and safety Curtis Riley on Friday, the team announced.
The Raiders released AJ McCarron last week, creating a need for a backup quarterback behind Derek Carr.
Glennon, 29, was released by the Arizona Cardinals earlier this month after joining the team on a two-year, $8 million deal last spring. It was his second consecutive year getting cut after one year with a new team, as the Chicago Bears released him last March after adding him on a three-year, $45 million deal in 2017.
Glennon saw action in two games for Arizona, going 15 of 21 for 174 yards and a touchdown. He went 1-3 as a starter for Chicago in 2017, throwing for 833 yards, four touchdowns and five interceptions.
A former third-round pick out of N.C. State by the Buccaneers, Glennon has a career passer rating of 84.0, with 5,107 yards, 35 touchdowns and 20 interceptions in 27 games (22 starts).
Riley, 26, started all 16 games for the New York Giants in 2018, nabbing four interceptions and totaling 75 tackles. A former undrafted free agent out of Fresno State, he spent his first two seasons with the Tennessee Titans as a reserve, before earning a starting job with the Giants.