マーク・ルーイン
In late 1975, Kent moved closer to home and work for The Sheik’s "NWA Detroit" (also known as "Big Time Wrestling") using his "Bulldog" Don Kent persona. On November 1, 1975, Kent defeated Mark Lewin to win the Detroit version of the NWA United States Heavyweight Championship. Lewin regained the title in December. On October 16, 1976, Kent regained the title in a bloody brawl against Pampero Firpo and held on to it until January 8, 1977, when he lost it to Gino Hernandez. Kent developed into a long running enemy of the Sheik, who was the most popular man in the promotion, with the two clashing many times in wild and bloody brawls.