Sean Strickland reveals how Machine Gun Kelly altercation started: 'He looked at me like I was less than human'

Former UFC middleweight champion made headlines last Friday .

He had an awkward moment with Machine Gun Kelly in the crowd at a Power Slap event in Las Vegas .

Strickland looked offended at something MGK said and cussed him out before he walked away.

“You guys don’t understand, these people at these slap fights, they’re not people,” he said.