Complex sentence: On 29 September 2005 he made his debut with the first team in UEFA Cup, playing against Aris, and thus becoming the youngest footballer to debut in an international competition for an Italian team.
Split into simpler sentences: On 29 September 2005, he made his debut with the first team in the UEFA Cup, playing against Aris. He thus became the youngest footballer to debut in an international competition for an Italian team.