Darrelle Revis' attorney is spelling out the NFL star's side of the violent incident in Pittsburgh -- claiming he was attacked by a drunk guy who was flexing his "beer muscles."
TMZ Sports spoke with Blaine Jones who says Revis did everything in his power to DIFFUSE a bizarre and aggressive situation before things turned violent on Sunday morning.
Jones says Revis was in fear for his own safety -- and thought the other man may have even been carrying a weapon -- and only did what he needed to do to protect himself.