Complex sentence: Reid made his Collingwood debut in Round 13,2007 against Hawthorn, aged 18 years and 2 months he was the youngest player in the AFL at the time.
Split into simpler sentences: Reid made his Collingwood debut in Round 13,2007 against Hawthorn, aged 18 years and 2 months. He was the youngest player in the AFL at the time.