By Daniel Alvarenga LISBON, Jan 5 (Reuters) - Portuguese forward Eusebio died of a heart attack in Lisbon at the age of 71 on Sunday leaving behind a legacy that marks the Benfica legend out as one of the greatest players in soccer history. Born Eusebio da Silva Ferreira in the Mozambique capital Maputo on Jan. 25, 1942, he rose to international prominence at the 1966 World Cup in England and went on to cement his reputation over the following decade, winning many admirers with his speed, technique, athleticism and a ferocious right-foot shot. Eusebio began playing football barefoot as a child on Mozambique's dust track pitches before jumping into the spotlight at Benfica. Benfica won the trophy in 1961 and 1962. More...