Justin Blackmon admitted to having "2 drinks" at a local bar before getting behind the wheel of a 2015 Jeep Wrangler ... but appeared WASTED ... this according to the police report obtained by TMZ Sports.
The ex-NFL star was initially pulled over in Ardmore, OK on Saturday morning when cops spotted a defective brake light on his ride at 2:46 AM ... but when they approached the car, Blackmon reeked of booze.
According to the report, Blackmon had bloodshot watery eyes and he was slurring his speech -- and admitted to drinking at Chevy's Bar earlier that night.
Our sources tell us Blackmon goes to Chevy's a lot -- and is popular with the staff. One person tells us, "He's one of favorite people."
Cops say Blackmon bombed several field sobriety tests -- unable to walk in a straight line or balance himself.
Blackmon was eventually taken into custody on suspicion of DUI -- and cops say he became angry during the booking process ... refusing to give police his phone number.
According to the police report, Blackmon is listed at 6'2", 215 lbs.
Blackmon was released several hours later. He's due back in court Monday.