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In his first welterweight bout, Miguel Cotto emerged victorious, defeating Kelson Pinto via technical knockout (TKO) in the fifth round. The fight, held on March 11, 2006, at the Thomas & Mack Center in Las Vegas, Nevada, marked Cotto's successful transition from the light welterweight division. Cotto displayed his signature power and precision, showcasing his abilities in the new weight class.