The 50,000 plus Manchester United fans inside Old Trafford must have looked on in bewilderment as Leicester City warmed up.



In front of them was what looked like a rag-tag team conducting their own spontaneous warm-up without any coaching staff in sight and looking like a bunch of drunks dancing on a stag do. This would surely be easy meat for their star-studded side, who were being put through their own coordinated and professional-looking preparations.



And as David Beckham, Ryan Giggs, Paul Scholes and the rest of the Class of ’92 looked over at the shenanigans of their opposition, they too must have thought they would make light work of Martin O’Neill’s side.



“Honestly, it was the most shambolic warm-up you have ever seen in your life,” recalls striker Tony Cottee of that Premier League game in January 1998. “There were balls going everywhere.



“We made a little circle where everyone was allowed to do a...