The Raiders are placing the signal-caller on injured reserve, NFL Network Insider Ian Rapoport reported. The team later confirmed the roster move.
Peterman has a small tear in a non-supporting ligament in his elbow, Rapoport added, per a source informed.
Anyone who has watched HBO's Hard Knocks knows coach Jon Gruden's fascination with Peterman, despite the quarterback's abysmal record as an NFL starter.
With the 25-year-old heading to IR, Gruden gets to keep both Glennon and Peterman on the squad. The move also allows Gruden, who has always loved stockpiling quarterbacks, to add another passer in Kizer in the process.