Chargers' wide receiver Vincent Jackson was arrested Tuesday on suspicion of drunken driving. Jackson failed sobriety tests shortly after 2 a.m. in San Diego, said California Highway Patrol Officer Ray Scheidnes. "Obviously we're disappointed," GM A.J. Smith said. "We take these issues very seriously. Moving forward, we will monitor the situation and have no further comment." Jackson had the first 1,000-yard season of his career, for a team-high 1,098 yards and seven touchdowns this season.