An off-field master at both Vicarage Road and Heywood Road during his time in the 15-man game, Deakin also masterminded Bradford Bulls Rugby League club's ascension to the top of the British game with his marketing brilliance.
A former league player with Oldham, his other main administrative role was with league side Warrington Wolves, where he once again proved himself as a moderniser – a friendly man who was always popular with his staff, the media and of course his friends.
Premier Rugby CEO Howard Thomas said: "It is a tremendously sad day for everyone. Peter contributed greatly to the style of marketing that has been followed by all premiership clubs."