Ferguson was on the other end of Keegan’s famous rant.

England manager Thomas Tuchel read out a letter on behalf of Ferguson, who is recovering after being taken ill at Man Utd’s game against Liverpool.

The 84-year-old Scot sought precautionary medical attention at Old Trafford ahead of the 3.30pm kick-off.

Prime Video’s ‘99’ launches on the streaming platform worldwide on Friday.

The former Manchester United boss published a eulogy in the matchday programme for Sunday’s derby fixture against Manchester City.