Leavitt signed a contract with the Packers on Monday.
Leavitt was waived by the Raiders on Wednesday after he registered career highs in tackles (35) and both defensive (233) and special-teams (347) snaps over 16 games in 2021. The 27-year-old should play a key role for Green Bay special-teams coordinator Rich Bisaccia, who served as Las Vegas' interim head coach for 13 games last year.