The German says he has always enjoyed a good relationship with the Portuguese, despite his controversial managerial style
Jose Mourinho is "so intense" as a manager but most of his players would still speak fondly of him, according to Michael Ballack.
Ballack was signed by Mourinho at Chelsea in 2006 and worked under the current Tottenham boss until his first Stamford Bridge departure the following year.
The Portuguese coach's confrontational style has seen him clash with some high-profile players during a career that has also seen him take in spells at Real Madrid, Manchester United and Inter.