Former Chelsea boss Luiz Felipe Scolari says Michael Ballack resented the arrival of Deco from Barcelona.
The Palmeiras boss revealed Ballack was jealous of his midfield rival Deco and refused to talk to the Portugal star.
He said: "Ballack wanted to be one of the owners of the dressing room and the relationship with the German was not easy. He seemed jealous of Deco, did not want his arrival and I had to explain that I was the coach and it was up to me.
"I wanted Deco to work it out with Ballack, but it wasn't possible. They didn't speak to each other."
