Popular Derek “The Surgeon” Silveira operated last night on previously undefeated Roberto “El Viejo, Jr.” Valenzuela, Jr., re-capturing the New England welterweight title, by way of an eight-round unanimous decision in the main event on the “Riot at the Rim” card, presented by Granite Chin Promotions (GCP), at The Rim in Hampton, New Hampshire. Silveira […]