BattleGrounds MMA, the upstart Mixed Martial Arts (MMA) promotion headed by Olympic wrestling legend Kenny Monday, announced on Thursday that it has signed the first six competitors for O.N.E., its highly-anticipated, one-night, eight-man welterweight (170 pounds) tournament that will award the winner a grand prize of $50,000 on Friday, June 27 at BOK Center in Tulsa, Okla. Tickets for the event, which will feature eight professional bouts in addition to the single-elimination tournament, are priced from $65, and can be purchased online at www.bokcenter.com as well as at Arby’s Box Office at the BOK Center, all ticket outlets, or by calling 1-800-7-BOKCTR. All-time great Dennis “Superman” Hallman (53-14-2, 1 NC) of Yelm, Wash
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