Complex sentence: He played from "Pulcini Regionali" team in 2001--02 season to "Allievi Nazionali" team in 2007--08 season, winning the league champion with "Giovanissimi Nazionali" team in 2006.
Split into simpler sentences: He played from "Pulcini Regionali" team in 2001--02 season to "Allievi Nazionali" team in 2007--08 season. He also won the league champion with "Giovanissimi Nazionali" team in 2006.