Complex sentence: John "Jack" Preston was an English professional rugby league footballer who played in the 1900s, playing at representative level for England, and Lancashire and at club level for Swinton, and Warrington, as a Forward, during the era of contested scrums.
Split into simpler sentences: John "Jack" Preston was an English professional rugby league footballer who played in the 1900s. He played at representative level for England, and Lancashire and at club level for Swinton, and Warrington, as a Forward, during the era of contested scrums.