Complex sentence: Keith David Day (born 29 November 1962 in Grays) is a former professional footballer who played league football as a defender for Colchester United and Leyton Orient and non-league football for Aveley, Sittingbourne, Farnborough Town and Grays Athletic.
Split into simpler sentences: Keith David Day (born 29 November 1962 in Grays) is a former professional footballer who played league football as a defender. Day made appearances for Colchester United and Leyton Orient in the Football League and non-league football for Aveley, Sittingbourne, Farnborough Town and Grays Athletic.