Complex sentence: He played more than 300 games in the top two divisions of the Football League over a 21-year career which was interrupted by the Second World War, and was the oldest player to appear for Birmingham City in a competitive first-team match.
Split into simpler sentences: He played more than 300 games in the top two divisions of the Football League over a 21-year career which was interrupted by the Second World War. He was the oldest player to appear for Birmingham City in a competitive first-team match.