Raiders receiver Hunter Renfrow‘s second overtime fumble was returned by the Cardinals for a game-winning touchdown.
Renfrow may also have suffered an injury on that play.
Per Paul Gutierrez of ESPN, Renfrow is being evaluated for a concussion.
Just two plays earlier, Renfrow had fumbled after converging third-and-three. But tight end Foster Moreau recovered to keep the Raiders’ possession.
Renfrow ended the game with seven catches for 59 yards.
The Raiders travel to Nashville to take on the Titans next week.