The former winger urged people to look beyond the Portuguese's antics and instead focus on his record of success and the effectiveness of his methods
Damien Duff has given an insight into what it is like as a player working under Jose Mourinho, describing the Manchester United manager as a "genius".
Duff played under Mourinho at Chelsea during the Portuguese's first stint at Stamford Bridge and was a key ingredient as the Blues won back-to-back Premier League titles in 2005 and 2006.
While he has enjoyed considerable success with a number of different clubs, including Porto, Inter and Real Madrid, Mourinho's behaviour often comes in for scrutiny, with critics deriding the coach's antics on the sideline and in press conferences.