NFL lineman Roy Miller -- a 6'2", 315 lb. defensive tackle -- got so pissed off at his wife, he chased her into her SUV and then ripped off the door handle ... according to court docs.
The former Jacksonville Jaguars player has been at war with his estranged wife for months -- she filed for divorce after 30-year-old Miller was arrested for a previous domestic violence incident.
She's also claimed he's a violent alcoholic.
Now, Nicole Miller says Roy got violent again on June 26 during a dispute over custody over their children.