Complex sentence: Norman Mitchell is a professional rugby league footballer who played in the 1950s, playing at club level for Featherstone Rovers (Heritage № 330), as a, i.e. number 2 or 5.
Split into simpler sentences: Norman Mitchell is a former professional rugby league footballer who played in the 1950s. He played at club level for Featherstone Rovers (Heritage № 330), as a, i.e. number 2 or 5.