Rafael Benitez is well-known for his "Rafa rants" and his latest tirade against employers Chelsea could further damage his reputation and chances of finding another job.
His blast after last night's FA Cup fifth round win at second tier Middlesbrough has already led to media speculation that he will be asked to leave earlier than the end of the season when his short-term deal runs out.
It was the very fact that he was installed as "interim" manager when he replaced sacked Champions League-winning boss Roberto Di Matteo in November that riled the Spaniard and led him to criticise the board after being undermined by fans.
"They gave me the title of interim manager which is a massive mistake," he openly told a news conference.
Benitez has form for shock outbursts.
At Liverpool in 2009, he pulled a list out of his pocket during a news conference and catalogued his criticisms of Manchester United manager Alex Ferguson.
His use of the term "facts" has become cult viewing on You Tube among English football fans.
United won the league that season with Liverpool second. Benitez, who had led the club to the 2005 Champions League title, left Anfield at the end of the next sorry campaign.
He...