Complex sentence: Michael "Mike" Davies is a professional rugby league footballer who played in the 1980s, playing at representative level for Wales, and at club level for Cardiff City (Bridgend) Blue Dragons, as a, i.e. number 3 or 4.
Split into simpler sentences: Michael "Mike" Davies is a former professional rugby league footballer who played in the 1980s. He played at representative level for Wales, and at club level for Cardiff City (Bridgend) Blue Dragons, as a, i.e. number 3 or 4.