George Graham?
It can't be him. Graham got married when he was at Arsenal in September 1967 - on the morning of the Arsenal v Spurs derby.
His best man was Terry Venables, who played against him for Spurs that afternoon and early in the game was left flat on his back nursing his leg in anguish following a blistering tackle from Graham.
True story, made even better by the fact that Graham scored on his wedding day. The Observer reported that "Graham squeezed past Knowles to slide it in"!