Las Vegas Raiders cornerback Nate Hobbs was arrested for DUI just hours after the team's huge win over the Colts ... after cops say the rookie was found passed out in his car in Vegas.
Law enforcement sources tell TMZ Sports ... cops responded to The Cromwell Hotel around 4 AM on Monday, after they say witnesses saw Hobbs asleep at the wheel on a parking lot exit ramp.
Our sources say officers made contact with the football player ... and eventually arrested him after they claim he did not do well in field sobriety tests.