Roberto Durán, 'Mano de Piedra,' boxed across seven weight classes and five decades. He was one of the greatest lightweights to ever set foot in the ring and one of the 'Four Kings' of the middleweight division.Durán made his pro-debut in 1968 and retired in 2001 with a record of 103-16 and 70 knockouts. He was particularly known for his ferocity, clinical in-fighting, and his heart. In the ring, champion or challenger, he was nearly always the crowd favorite - if he wasn't the favorite going in, he was often the favorite coming out.Raised in the slums of Panama City, Durán learned to fight on the streets. As Ring Magazine reported in 1971:"He felt he was too young to die, so he learned to fight, and fight hard."The young Panamanian began to box at the Maranon Gym at the age of 16. He turned professional in 1967.Here's a look at the decades that followed and the career of one of the greatest fighters ever to set foot in the ring.5. Roberto Durán in the 1960'sRoberto Durán's first fight was against Carlos Mendoza in 1968. He won the fight by an unanimous decision. He fought nine times in '68, winning all but the first bout by knockout. Seven of these knockouts were in the first round and one was in the second.The 'Hands of Stone' also fought six times in 1969. He won all six, five by TKO. By the end of his second year as a professional boxer, he had a record of 15-0. All of the fights were held in Panama City or Colón, Panama.ʙᴏxɪɴɢ ᴛʀɪᴠɪᴀ ɢᴜʏ@BoxingTriviaGuy#OnThisDay in 1968 16-year-old Roberto Duran made his pro debut and got the first of 103 career victories under his belt.5139#OnThisDay in 1968 16-year-old Roberto Duran made his pro debut and got the first of 103 career victories under his belt. https://t.co/4aPKaLuGGf