Dallas PD tells us they responded to a report of a man banging on doors around 6:10 AM this morning. When cops arrived, they located Bennett, 25, and determined he was intoxicated. Bennett was arrested for public intoxication and taken to the City Detention Center.

Bennett, 25, had been training for the NFL Draft in Fort Worth, TX. The 5'10", 190 lb. quarterback is all over the place when it comes to mock drafts ... with some writers and "experts" having him drafted in the early mid-rounds, to not being picked at all.

He's not the prototypical professional QB, but Stetson's one of the most accomplished college signal-callers ever. SB lead his UGA Bulldogs to a perfect 15-0 season, an SEC title, and a National Championship this season (they won back-to-back National titles) ... after starting his college career as a walk-on.

Bennett didn't win the Heisman (Caleb Williams, USC), but was a finalist for the prestigious award this year. He took home the Manning Award, given to the best college QB in America.

Bennett likely would've been in Alabama this week for the Senior Bowl, but turned down an invitation to play in the game, instead reportedly telling game officials he wanted to focus on preparing for the NFL Combine.