Upon his arrival at Chelsea in 2004 Jose Mourinho proclaimed himself as the 'Special One'.
He certainly lived up to his self-proclaimed title as he took the Blues to back-to-back Premier League titles, following a successful spell at FC Porto that saw him win the Champions League and UEFA Cup.
Having returned to Stamford Bridge in 2013, he stated he was no longer the 'Special One' - he was now the 'Happy One'.
BECOME A WRITER
Do you have what it takes? Sign up today and send over your 250 word test article: http://gms.to/haveyoursay3
However, his 'special' tag has stuck and any time the Portuguese is mentioned the title seems to follow.
But Chelsea's start to the season has been anything but special - the defending champions have eight points from their first seven league matches and lost to FC Porto in the Champions League in midweek.
The west London club welcome Southampton this weekend - a club who have also failed to rediscover their form of last season.
And Ronald Koeman believes Mourinho should not be labelling himself 'special' but does acknowledge his achievements as a manager.
As per the BBC, the Saints boss said: "We learn a lot, we make our own direction to develop as a coach.
"I think I did it in a good way but Jose did it much better because he won a lot and he is a winning coach and I like how he is as a coach.
"In some things he is special, but what's the 'Special One'? I think it is a good mentality to be the best and to like to be the best but it's not for yourself to mention that."
The Blues can ill afford to drop any more points at this early stage and it would come as no surprise to see Mourinho make changes to his starting line-up.
Branislav Ivanovic has been woeful this season and could be dropped while John Terry could return to the centre of defence.
Eden Hazard and Nemanja Matic are also likely to return after being dropped for the trip to Portugal.
Is Jose Mourinho the 'Special One'? Have your say in the comments section below!