Oakland Raiders owner Al Davis fined former head coach Tom Cable during the season, ESPN's Adam Schefter reports.

Schefter reports that Davis began deducting $20,000 from Cable's weekly paychecks.

Cable has filed a grievance with the NFL, who are attempting to determine the exact reasons why Davis levied the fines.

The Raiders declined to pick up Cable's two-year option after the team finished 8-8, their first non-losing season since going to the Super Bowl in 2002.

Oakland is currently the only team in the NFL without a head coach.