sentences:  Milan returned to win a football league in 1961–62 under manager Nereo Rocco, an innovative football coach known as the inventor of the "catenaccio" tactic.The team included a young Gianni Rivera and José Altafini.The following season, in large part due to Altafini's prolific goal-scoring, Milan won their first European Cup (later known as UEFA Champion League) by defeating Portugal's Benfica 2–1.