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Roberto Durán Samaniego, also known as "Manos de Piedra" (Hands of Stone), is a former professional boxer from Panama. He is widely regarded as one of the greatest boxers of all time, having won world championships in four different weight classes: lightweight, welterweight, light middleweight, and middleweight. Durán's aggressive fighting style and exceptional punching power earned him a reputation as one of the most formidable boxers of his era.