Shearer is still annoyed about Gullit dropping him almost 17 years ago!
There are quite a few footballers who fall out with their managers. Diego Costa and Jose Mourinho appeared to have a very poor relationship by the end of the Special One's reign at Chelsea and Roy Keane and Sir Alex Ferguson infamously locked horns.
When the Dutchman replaced Kenny Dalgliesh at St James' Park, the pair never really got on, with Gullit thinking that the then England captain should be playing much better than he did.
They came to loggerheads after Shearer was dropped for the Tyne-Wear derby – a decision that cost Gullit's job in the end.
These days, however, the two seem much more amicable and regularly appear on Match of the Day alongside each other.
However, the two did bring up their old arguments ahead of Chelsea's clash with Mk Dons. Shearer joked: "You wanted to get rid of me. Why did you want to get rid of me?"
To which Gullit replied: "Well, just look at his face!"
And it kept kicking off! With Gary Lineker asking: "Alan did you get Ruud out? to which Shearer replied: "How can you leave a player that scores 20 goals out?!"
We have got to agree and we cannot wait to see these two go at each other again because there could still be a bit of bad blood between the duo.