Giants running back Ahmad Bradshaw, a 2007 rookie who came on strong during the team’s improbable playoff run, is behind bars due to an “undisclosed probation violation.”

As a freshman, Bradshaw was booted from the University of Virginia football program after being nabbed for underage drinking, running from cops, and ending up on the wrong end of a cloud of pepper spray.

At Marshall, he was placed on probation for two years after pleading guilty to stealing a Playstation 2 from an unlocked dorm room.

Bradshaw has been confined to the Southwest Virginia Regional Jail since Saturday, June 15.