Champions League: Guardiola urges Man City players to keep emotions in check following Grealish incident

Erik ten Hag also spoke about Manchester City boss Pep Guardiola's influence on his own coaching style. "I like how Guardiola brings his style to the team. His teams are always offensively aligned - with adventure and freedom for the players. He doesn't just focus on winning. He wants to play attractive football," the Dutchman said.

Atletico regularly targeted Grealish, while Angel Correa was booked for kicking the ball towards the former while he lay on the ground. Guardiola was seen running at Correa and screaming at him, "You are mad". While a similar vigour could be expected during the return leg next week at the Wanda Metropolitano in Madrid, Guardiola has warned his side.

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"We have to control our emotions and do what we have to do. There will be a referee there. Atletico has known the knockout stages many times, and it will be a good test for us with our maturity. The referee is there. I am not usually the one that handles it. Jack reacted well and stayed focused on what we needed to do," said Guardiola after the match.

"We played an extraordinary opponent. The stats speak for themselves. They are very dynamic. We want to go through with the tools at our disposal. We defended well, a massive collective effort. We could've attacked a bit better on the counter-attack. Let's see if we can have the ball more and create more difficulty for our opponents, but that comes with being calm and having a collective defensive effort. I've been shown how to compete until the end in any way you can," Guardiola added.