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A bantamweight division attraction has been added to Bellator 137 as Darrion Caldwell enters the cage against Rafael Silva. Caldwell is undefeated as a professional MMA fighter, with three of those victories coming under the Bellator MMA banner. Silva has won three of four fights under the Bellator MMA banner, most notably defeating UFC veteran Rob Emerson at Bellator 127. Bellator 137 takes place on May 15th from the Pechanga Resort & Casino in Temecula, California with Brandon Halsey and Kendall Grove headlining.
