Complex sentence: Gary Thomas "Dizzy" Disley is a professional rugby league footballer who played in the 1980s, and 1990s, playing at representative level for England, and at club level for Salford City Reds, as a prop, i.e. number 10.
Split into simpler sentences: Gary Thomas "Dizzy" Disley is a former professional rugby league footballer who played in the 1980s, and 1990s. He played at representative level for England, and at club level for Salford City Reds, as a prop, i.e. number 10.