Jose Mourinho "calmer" since 2004

Chelsea boss Jose Mourinho believes that he is "calmer" now than he was when he took charge at the Premier League club in 2004.

Speaking to reporters at a press conference on Monday, the Portuguese also claimed that he is "in the best moment of his career in terms of knowledge".

"Calmer? I believe so. You have to learn with experiences. Sometimes people speak about people in negative way. I haven't arrived there yet but experience is vital if you use it well," said Mourinho.

"I analyse myself every day as manager, leader and member of a club and I try to improve. Nine years is a big difference and you pushed me a lot in that first press conference for a strong approach - now you know me after my success.

"I'm in the best moment of my career in terms of knowledge. I'm sorry the pre-season doesn't start tomorrow."

Mourinho, who left Chelsea in 2007, has since had spells with Inter Milan and Real Madrid.