Conceicao had accused Guardiola of insulting the Porto bench during a clash between Porto and City in 2020, and also said something similar about Thomas Tuchel when the German was in charge of Chelsea.
He said of Guardiola in 2020: "I’ve got a lot to learn from Pep Guardiola, in the way he pressures referees, talks to opposition players and the opposition dugout. He’s a fantastic example. I have to learn this. We were angels compared to the other dugout. He spoke about our country using ugly words. Guardiola’s attitude was extremely unpleasant."
That same season, his team faced Chelsea, and he remarked about Tuchel: "I was insulted by this man who is next door. I told the referee that the fourth referee heard the insults. My English is not perfect, there is no point in talking about it. There was no exchange of words because I was focused on the game, I don’t know why he reacted."