The 'Paul Blart' actress suing Warren Sapp for battery was arrested for DUI just hours after the alleged incident ... TMZ Sports has learned.
As we previously reported, Paula Trickey -- who was a recurring character on "The O.C." -- claimed Sapp drunkenly knocked her to the ground during a 2015 ESPN Super Bowl party in Arizona.
Trickey claimed Sapp was being kicked out of the party around 1 AM when he tried running through the crowd and slammed into her ... causing serious injuries.
We did some digging and found out just a few hours later at 3:40 AM, the Scottsdale PD popped Trickey for DUI claiming she reeked of alcohol, bombed the "walk the line test" and blew a .