Speaking on the Stick to Football podcast, Gullit said: "Later on I found out that there was a lot of money going around because all of a sudden the best players wanted to come to Chelsea and they were offering a lot of players that I didn't want...I was a little bit in the way.
"You had people around you who took care of you and and then all of the sudden they backstabbed you. And that's a horrible feeling.
"The worst thing of all was also my mum had breast cancer. So I had to go to Amsterdam all the time in order to support her. And then they said, 'Yeah, but he's never here because he's always in Amsterdam'."