*TMZ.com says one of its spies witnessed Death Row co-founder Suge Knight getting knocked out Saturday night during a fight at Shag nightclub in Hollywood.

       The Web site's account is as follows:

       A source witnessed Suge talking to a guy -- and the convo was friendly enough at first. Then it turned. Suge shouted, "I want my money!" Suge then rushed the guy with the help of his posse, and began hitting and kicking him. Get this -- during the fight, Suge put a random guy in a headlock, demanding his cellphone.

        People outside the club broke up the fight, and as the beatee got up, he landed a right hook to Suge's face, knocking him out cold. We're told Knight was out for nearly three minutes. His peeps then rushed him into a nearby SUV.

      BTW, after Suge woke up, he began yelling for the phone he had just taken from the random guy.