CHELSEA boss Thomas Tuchel has revealed he was in a "dark place" following a defeat to Manchester United in the Champions League.
The former PSG manager will face off against the Red Devils on Sunday at Stamford Bridge.
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And it was a game in the last-16 of the Champions League in 2019, which the German took the French side back to the Parc des Princes after winning 2-0 at Old Trafford that haunts him the most.
The Red Devils stunned PSG - winning 3-1 in Paris to go through on away goals.
It was a defeat that was tough to take for Tuchel.
"I can be very honest, after that match I was two days in a very dark place and I can tell you I was not able to speak to anybody and to think about anything else than this defeat," he said.
'I didn’t experience anything like this ever again or before.
"It was in the circumstances, this game, how we arrived there, the pressure around the club concerning the round of 16, the history before and the result of the first match and the way the second match went with the VAR decision in the last minute.
"It was like it came from absolutely nowhere and that’s why this hit was hard to take.
"But, like I said, I was two days in a dark place but then we gave the players two days off and I think that was the best for everybody.
"After that, it’s like this in sports, it can teach you that you have to stand up and accept that a defeat is sometimes necessary to grow and develop and to ask yourself decisive questions.
"That can hurt and the reward was one year later, it was almost the perfect reward when we arrived in the final and we came a long way for that. It was through adversity and it’s often said that it makes you stronger."