Complex sentence: Seamus McCallion is a professional rugby league footballer who played in the 1980s, and 1990s, playing at club level for Halifax, Leeds, and Bramley, as a, i.e. number 9.
Split into simpler sentences: Seamus McCallion is a former professional rugby league footballer who played in the 1980s, and 1990s. He played at club level for Halifax, Leeds, and Bramley, as a, i.e. number 9.