Complex sentence: Liam was a member of the Waterford senior football panel from 2007 to 2009, he made his debut as a second-half substitute against Kerry in the Munster senior football semi-final in the Fraher field.
Split into simpler sentences: Liam was a member of the Waterford senior football panel from 2007 to 2009. He made his debut as a second-half substitute against Kerry in the Munster senior football semi-final in the Fraher field.