TMZ Sports has obtained police video from the night of Robert Quinn‘s January arrest … and in the footage, you can see the ex-NFL star was bleeding from his face — while appearing to be combative with officers.

The scene all unfolded at around 2 AM on Jan. 10 in North Charleston, S.C. … after Quinn allegedly crashed his truck into a parked car — and then attempted to flee the area.

According to a North Charleston Police Department incident report, the former Dallas Cowboys pass rusher was confronted by cops as he seemed to be trying to get away from the crash site via a ride from an acquaintance.

In the new footage we obtained, you can see as authorities escorted Quinn to a squad car — he seemingly could not keep his balance on his own. When he got into the vehicle, he looked upset as blood dripped from several parts of his face.

Quinn — who could hardly formulate full sentences — repeatedly asked why he was being placed under arrest … and then he kicked the vehicle’s door in an apparent effort to escape.

Quinn was ultimately transported to a medical facility to tend to his wounds … before he was booked at a nearby jail.

The ex-football player is still facing two misdemeanor charges over the incident — one count of reckless driving and one count of hit and run — and a trial in the case is tentatively slated for December.