Complex sentence: John "Jack" Lally was an English professional rugby league footballer who played in the 1900s, and 1910s, playing at representative level for England, and at club level for Widnes.
Split into simpler sentences: John "Jack" Lally was an English professional rugby league footballer who played in the 1900s, and 1910s. He played at representative level for England, and at club level for Widnes.