Carson Palmer has said that he does not know whether he will be staying with the Oakland Raiders in 2013.

The quarterback, who has one of the highest salaries in the NFL, is expected to face competition for his place in the starting lineup.

The 33-year-old told CSN Bay Area: "Not sure what's going to happen. Would love to be back in Oakland and compete."

The Raiders finished third in their division in 2012, recorded four wins and twelve losses.