Thomas Tuchel has torn into the officials of Bayern Munich's Champions League semi-final tie against Real Madrid after his side were denied a potential late equaliser.
Bayern crashed out of the Champions League in dramatic fashion on Wednesday night, leading the tie with three minutes to go but conceding two late goals to Joselu as Madrid booked their place at Wembley at the start of June.
But the former Stoke forward's strikes were only half the story, with Matthijs De Ligt netting in the 13th minute of injury time, only for Polish referee Szymon Marciniak to have blown his whistle for offside moments before.
Replays showed that the call was extremely tight, with Bayern's Noussair Mazraoui appearing at first glance to be onside despite the call. Due to the whistle already being blown, VAR could not intervene, with officials told to delay their calls in case they are wrong.
Tuchel, speaking to TNT Sports, revealed the assistant referee had apologised to him for flagging early in a move that could have cost his team the game.
Thomas Tuchel has slammed the officials of Bayern Munich's defeat to Real Madrid
Matthijs de Ligt was denied a late equaliser after it was adjudged there was an offside in the build-up, with the linesman flagging early
'That was an absolute disaster,' the German said. 'A violation of the rules.
'This scene must be played out to the end. That's the rule. The linesman made the mistake, and the referee made the second mistake.
'We were almost there and a very unusual mistake of the best player for the equaliser, then we conceded in a very narrow decision in stoppage time. Then we scored one and it was a disastrous decision from the linesman and the referee, so it feels almost like a betrayal in the end because of that decision.
'The linesman said sorry. That does not help at that kind of level, to raise the flag in a decision like this, in a close decision in the last minute. The referee as well, he does not have to whistle, he sees that we win the second ball, he sees that we get the shot away. To whistle is a very, very bad decision.
'It is against the rules and it is a bad decision from both of them. It is a disaster, tough to swallow, but it is the way it is.'
He added: 'Having the balls to raise the flag in a situation like that is a big mistake. And then the referee, when he saw that we won the rebound, made the decision to whistle. It wouldn't have happened the other way round.
'We accept the apology (from the linesman) but this is not the time to apologise. It's the semi-finals and it's not the time to make those sort of mistakes.'
De Ligt (left) had led the on-field protests, but VAR could not intervene in the situation
Tuchel branded the situation a 'betrayal' an d revealed he received an apology from the linesman
De Ligt had led the Bayern protests on the pitch, and echoed his manager's comments post-match in that he too had received an apology from the officials.
Bayern will now go trophyless for the season for the first time in over a decade.
'We all know the rules if the offside is not clear then we have to play on,' said the Dutch defender. 'It's a disgrace that it happened against us and not for us at the other end when Joselu was almost offside and the game was allowed to continue.
'A decision like that in the last minute is a mistake It's always easy to talk about the referee after the game but this time it's merited.'
He added: 'He said, "I'm sorry, I made a mistake", but that is no consolation to me.'
De Ligt was gracious when asked about Carlo Ancelotti's team, saying: 'We went from winning to losing in a moment and it feels terrible. We were so close. We thought they were dead and they came back again. That's why they have won the Champions League 14 times.'
Madrid boss Carlo Ancelotti (centre), meanwhile, hit back at the comments from Tuchel and De Ligt
Ancelotti hit back at the complaints from Tuchel and De Ligt, however, saying: 'If they complain about that then we can complain about our goal that was disallowed. Both players were pushing each other and it's Nacho who gets penalised.'
The record-breaking coach preferred to focus on two-goal Joselu, adding: 'He is the perfect representation of what this squad is all about. He hasn't played that much this season but he never gives up.'