Complex sentence: Tony Miller is a professional rugby league footballer who played in the 1960s, and 1970s, playing at club level for Castleford, as a, i.e. number 9, during the era of contested scrums.
Split into simpler sentences: Tony Miller is a former professional rugby league footballer who played in the 1960s, and 1970s. He played at club level for Castleford, as a, i.e. number 9, during the era of contested scrums.