Thomas Tuchel hopes he has delivered a wake-up call to his squad after spending a chocolate-fuelled night picking apart their shocking defeat to Real Madrid.
A Karim Benzema hat-trick at Stamford Bridge on Wednesday night all but ended Chelsea's hopes of defending their Champions League crown and sparked a night of comfort eating for Tuchel as he relived the nightmare over and over again.
Tuchel hauled his players in for a frank meeting on Thursday to try and shake them out of their slump having grown increasingly frustrated at the performance.
“I watched the match again and I got angry at home in the night, in the middle of the night, and the next morning I watched it again and got angry again,” said the German.
Tuchel managed to keep a lid on his anger and did not take it out on anything around the house, but had to watch the game at double speed to get it over with quickly, such was his frustration.
It is not an experience he will want to repeat after Saturday's trip to Southampton or next week's second leg in Madrid.
“At home, I was not that angry... the dog was safe, the dog is always safe,” said Tuchel.
“You sit there in the middle of the night and the amount of chocolate I needed was immense to go through the match again and compensate.
“It is not nice, you start writing and writing and writing and you realise that you are writing more and more, more minutes with a certain way of explaining things so that you don't forget it.
“At some point you press the button to watch it in double speed, just so it passes quicker and then you know you're not in a good place.
“At some point you have to stop and take a walk into the kitchen or the lounge and come back and press to calm down. It was not nice to watch.”
Tuchel added: "It is good to do it because it makes you process it and understand clearer what the message should be, not to be general and be more specific and we found some stuff and from there we go.
"I got some sleep late but it is not the first bad match we have analysed and sometimes it is necessary that you dig into that because otherwise it would not have been possible to sleep because of the emotion.
"It helps to watch it even if you don't like it. Then you come and watch with the staff, share your thoughts and impressions. Do a meeting and then training which is the best to do and then try to get back the sleep you missed the next afternoon."
Having caught up on his kip, Tuchel is now hoping the late night will pay off with a response on the south coast on Saturday.
"Somehow after international break we had the feeling like we play with 80, 90 percent and we hope to get away with it and it is not like this," said Tuchel.
"We need to kind of wake up or remind ourselves again that the investment physically was not enough in the last two matches and we need to find work over the pitch, that doesn’t matter so much if you find it on the ball or off the ball, but we need to find high intensity work again because this is what we do and this is what we lacked in the last two matches."
