The big man who was violently KO'ed in a heated fight at Walmart is NOT ex-NFL player Bruce Campbell ... the former Raiders O-lineman confirmed to TMZ Sports.
"No, that was not me," Campbell said. "No, I did not get my jaw broken."
WASN'T ME!!!
But the former NFL player -- a 4th round pick in the 2010 Draft -- says he concerned the damage to his reputation may already be done.
Here's what we know ... on Sunday, footage of a violent brawl in an unidentified Walmart went viral, with tons of people claiming the main combatant is Campbell, who left the NFL in 2014.