Joshua Stewart and Paul Klimczak are suing Bay over an alleged incident in 2008 in which they fought with a man they claim worked as a security guard for the Transformers filmmaker.
The plaintiffs claim they were rendered unconscious after the unnamed man hit them both over the head with a pistol outside an L.A. nightclub. They allegedly sought medical treatment for broken bones and teeth.
Stewart and Klimczak insist Bay should be held accountable for the incident because the employee was under his control at the time.
But Bay's lawyer Marty Singer has blasted the suit, insisting his client has never employed a personal guard.
He tells GossipCop.com, ""(The lawsuit is) ridiculous. (Bay) did not have a security guard that night - or any other night. He had dinner with six other couples at a restaurant nearby.""