Complex sentence: Alf Weston is a professional rugby league footballer who played in the 1970s, playing at club level for Castleford, as a, i.e. number 8 or 10, during the era of contested acrums.
Split into simpler sentences: Alf Weston is a former professional rugby league footballer who played in the 1970s. He played at club level for Castleford, as a, i.e. number 8 or 10, during the era of contested acrums.