The Man City boss could be seen on camera putting his finger to his mouth in an ugly gesture which seemed to support the idea he had insulted him, putting Guardiola at risk of a three-match ban. "That's why he sent me off", Guardiola told a news conference.
"I know what happened in Monaco last season when it was 1-1 when yellow card for Aguero, I know him from Spain he likes to be different".
The decision angered Guardiola and his reaction at the interval resulted in him being sent to the stands, with Liverpool ending any hopes of a comeback through goals from Mohamed Salah and Roberto Firmino.
Guardiola was adamant that Raheem Sterling should have had a penalty following a challenge by Andy Robertson, he complained at half-time and was punished by Lahoz.
Liverpool's Alex Oxlade-Chamberlain rounds Manchester City's Ederson during the Champions League quarter final second leg at Etihad Stadium, Manchester, on April 10. It's different when the first goal in Anfield from Salah is offside.
With City in the ascendency, the game's most controversial moment occurred when Leroy Sane's tap in (which would've made the score 2-0 before half-time) was adjudged to have been offside.
Champions League: Salah, Firmino star as Liverpool dump Man City to reach semifinals
In the last four they could meet two of the aforementioned teams, with Barcelona were surprisingly knocked out by Roma on away goals despite leading 4-1 from the first leg.
With Liverpool FC so close to the final, and facing the Reds at Anfield a daunting prospect for any opponent, Liverpool FC are clearly one of the firm favourites to actually win the competition this season.
"He said, 'oh the pass came from Milner?'".
"When the teams are so equal the impact of these decisions is so big", lamented Guardiola.
"You can really see over time he has been manager how we have progressed and become much stronger, pretty much month by month". There are six games to go and we must focus on that, finish the season with a Premier League trophy.
Guardiola added: "I know [the referee] from Spain. In this week, okay, we lost three games and have to recover". "That's why I have to try to analyse it game by game".
Elimination from the Champions League comes after a 3-2 defeat against Manchester United, but Guardiola insists that our incredible record over the course of the season should not be overshadowed by a seven-day blip.More news: IRFU announces the departure of Paddy Jackson and Stuart Olding
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