Mr. Wrestling
In December 1967, El Mongol was suspended by GCW promoter Paul Jones for getting himself disqualified too often so he could retain the title. So for the first two months of 1968 the suspended El Mongol disappeared, at the same time as a mysterious masked wrestler known as "Dr. M" competed in the GCW. The widely held suspicion that Dr. M. was in fact El Mongol was confirmed after he lost a mask vs. mask match to Mr. Wrestling on February 27. Mr. Wrestling then defeated El Mongol again on April 12 to become GCW's undisputed Heavyweight Champion.