Sir Alex and Keane have dominated the headlines over the past week, as current Aston Villa and Ireland assistant boss Keane released his second autobiography.
There are plenty of juicy moments for football fans to learn about, but Ferguson has opted to lavish praise on his former skipper.
Speaking at a convention in Dublin about that famous night in Barcelona in 1999 where the Red Devils became European champions, Ferguson cited the loss of the two best players in Europe at the time – Keane and Scholes – as the reason for the first-half struggles.
He said: "The most fantastic football moment of my life: Barcelona 1999. Now many people say we were lucky but the character of that team won that game.
“We didn’t actually play well in the first half I must say… I didn’t have Roy Keane and I didn’t have Paul Scholes – the two best midfield players in Europe.”
Former Ireland international Keane represented United 326 times over a 12-year period, winning the Premier League title seven times and the FA Cup on four occasions.
His teammate Scholes has often been lauded as the greatest English midfielder of his generation, and it comes as little surprise to hear Sir Alex regard him as one of the best.
The former diminutive midfielder was often recognised overseas for his ability to pass and dictate with ease, leading Spanish superstar Xavi to call him the best central midfielder of the past 15 to 20 years.
Listen to the audio from FM104 here: