Complex sentence: He gained 11 caps and scored 3 goals for the Portugal national team, and was a member of the squad in the 1928 football Olympic tournament where he played 2 games.
Split into simpler sentences: He gained 11 caps and scored 3 goals for the Portugal national team. Martins was also a member of the Portuguese squad in the 1928 football Olympic tournament, where he played 2 games.