Former Liverpool goalkeeper Jerzy Dudek revealed a clash in his new book.
Dudek wrote: "We were drawing 0-0 and Mourinho told him to warm up but instead of doing so he just stood around by the corner flag. I was sitting close to Mourinho and saw his reaction. He was furious: 'Look at his lack of effort. And then he gets offended when he doesn't play.'
“The next day we were training ahead of the Auxerre match. Pedro León thought he was going to play but Mourinho called us together in the centre circle and said to him: 'I'm sorry, but you're not interested in playing for Real Madrid. Others would give their lives for this shirt, but not you.' He looked at Pedro and told him to watch the game at home because he needed players who would die for the team."
On Thursday León responded to the Pole's account on social media: “Enough with the lies. I want to clarify that these declarations are completely false, they have no veracity of any kind and there are witnesses that can back that. Teammates who were with me at the time in the dressing room can confirm it. It is completely untrue and I demand these claims are rectified because of the damage they have caused against me."