Minnesota Vikings defensive tackle Tom Johnson was TASED by cops at a Minneapolis nightclub ... BECAUSE PEPPER SPRAY DIDN'T STOP HIM ... this according a police report obtained by TMZ Sports.
Johnson was arrested early Sunday morning at Seven Steakhouse Sushi Ultralounge Skybar -- where he was allegedly causing trouble around 3AM.
According to the police report, Johnson was told to leave the building -- but refused ... so cops decided to break out the pepper spray.
But Johnson -- 6'3", 288 lbs -- wasn't fazed ... so cops broke out the stun gun.
He was eventually taken into custody and booked for disorderly conduct and trespassing.
Johnson posted $78 bail -- and was released later that day. He's due back in court on Oct. 17.
Johnson's agent has told the media he was confident the Viking's player would be exonerated.