Complex sentence: Schiavio made his debut for the national team in November 1925, when he was 20 years old; he marked the occasion by scoring both goals in a 2--1 win over Yugoslavia in Padova.
Split into simpler sentences: Schiavio made his debut for the national team in 1925, when he was 20 years old. He scored both goals in a 2--1 win over Yugoslavia in Padova.