Unfortunately for Peacock , he replaced Charlton 's injured goalkeeper and Charlton lost 4 - 2 .
On 21 August 1965 , Charlton Athletic midfielder Keith Peacock became the Football League 's first - ever substitute when he entered their match against Bolton in the 11th minute .
Unfortunately for midfielder , Keith Peacock replaced Charlton Athletic 's injured goalkeeper and Charlton Athletic lost 4 - 2 .
On 21 August 1965 , Charlton Athletic midfielder Keith Peacock became the Football League 's first - ever substitute when he entered their match against Bolton in the 11th minute .