Former Chelsea defender Ricardo Carvalho has revealed that Jose Mourinho is difficult to work with when his team loses.
Carvalho played under Mourinho during his first spell at Stamford Bridge, as well as at Porto and Real Madrid.
"When he loses, he can't live with that," the 35-year-old told the Daily Mail. "He can't live with a defeat and you feel that in him.
"After a match when you have had a bad game, the next day is a difficult day to work with him.
"He doesn't say much but when he speaks, he has to criticise and say what he thinks about your performance. He makes you feel like you have to improve."
Chelsea start the new Premier League season at home to Hull City on August 19.
