Chelsea captain John Terry has provided a rare insight into what life is like on a day-to-day basis working with Jose Mourinho, with demands placed on Blues stars to treat training like a cup final.
Mourinho has a pretty fearsome reputation and it looks like its entirely justified, with Juan Mata, Andre Schurrle, David Luiz and Romelu Lukaku just some of the top stars who have failed to meet his exacting standards.
Terry believes much of Chelsea's success so far this term can be put down to Mourinho's attitude, because nobody wants to be the one player picked on for not doing enough on the training ground.
Terry continues to set the standard
In an interview with The Mirror the Blues skipper was asked about what makes Mourinho a top manager, revealing: "One thing he implements from day one is that every training session is about winning.
"It could just be a nothing game in training and he wants to see people putting their bodies on the line and making tackles, being disappointed if you lose - and he wants that out on the football field in matches.
Mourinho will have to keep squad fresh
"Every one of us take that out there and that is instilled in as on a daily basis because his standards are at the highest level and believe me you do not want to upset the manager on a daily basis."
There's little question that Mourinho's methods produce a measure of success, but can they be sustained over a longer period of time?
Long-term success the aim this time around
It's almost been forgotten how sour things turned during his first spell in charge at Stamford Bridge, not to mention reign as Real Madrid manager which saw him effectively lose the dressing room and become the Spanish media's most hated man.
Mourinho wants to stay at Chelsea for years to come, which means he'll have to constantly replenish his ranks with motivated, hungry players keen to prove their worth and be receptive to his punishing ideals.
Long-term success is certainly attainable, but only with careful, considered planning that looks beyond simply Chelsea's chase for the treble this season.
Chelsea fans, do you think Mourinho is back at Stamford Bridge for the long haul? Let us know by having your say in the comment box below!