The Welshman - a survivor of the Munich air disaster in 1958 - was taken ill on Saturday night and later passed away in hospital. Staff at the football club send their deepest condolences to Kenny's family and friends.
Kenny played for the Reds as a winger in the late 1950's, making his debut at the age of 18 against Leicester City on 21 December 1957. Less than two months later, he travelled to Belgrade for the ill-fated European Cup trip and sustained injuries when the team's plane crashed in Munich after refuelling on the return flight.
Although he recovered from his crash injuries and was able to continue his playing career, Kenny spent the large part of his time as a footballer back in his native Wales, leaving Old Trafford for Swansea in 1961 and later joining Newport County before retiring in 1967.
Kenny returned to Old Trafford for two notable events in recent years - for the 50th anniversary of the Munich tragedy in 2008, and latterly an Association of Former Manchester United Players dinner at which he was the guest of honour.