Complex sentence: Maschio played 12 games for the Argentina national football team between 1956 and 1957, scoring 12 goals, he helped Argentina to win the Copa America 1957, he was the top scorer in the tournament with 6 goals.
Split into simpler sentences: Maschio played 12 games for the Argentina national football team between 1956 and 1957, scoring 12 goals. He helped Argentina to win the 1957 Copa América, and was the top scorer of the tournament with 6 goals.