"If we talk about the referee the FA is going to come in for the punishment if we think like that, but I think I need to sleep and rest and forget this game".
But Cech has warned his teammates winning the FA Cup for a third time in four years would still not excuse them failing to qualify for next season's Champions League. Aguero received a kick in the back following a tackle from Laurent Koscielny in the first half, but lasted until the extra time.
"I looked around my dressing room and saw great centre halves and thought "I'm going to out-work you, do more than you, be better than you".
"We need to make sure we win every game", Cech said.
"If we have to talk about referees, people are going to say "we complain" but when we see the highlights, for me it is very disappointing".
"Obviously the FA Cup is at the end of the season so there will be a lot of games before we play the FA Cup", Cech said.
Fernandinho also limped off to prompt an enforced double change in the 99th minute - Alexis Sanchez netted Arsenal's victor 86 seconds later - but the midfielder is confident he will be back for the derby.
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The Detroit News later identified the community as Dawoodi Bohra, a small Shi'ite Muslim community with origins in South Asia. Attar, Nagarwala advised parents to deny knowing about FGM should they be asked by federal law enforcement authorities.
City manager Guardiola provided an update on the duo's status after his side's FA Cup defeat to Arsene Wenger's men.
"They play long balls to [Olivier] Giroud and they counter-attack and with set pieces they are a tall team".
Arsenal are seventh in the league, seven points behind fourth-placed Manchester City with a game in hand.
Fernandinho's midfield colleague Toure feels the race for a top-four spot will go down to the wire. The Old Trafford outfit have a tough run of fixtures with the Europa League semi-final match against Celta Vigo in May and a league clash against Arsenal. "I think everybody showed that it's not only about coming to take part in a semi-final and hoping it is going to be your day".
"We had a hard period where the team was losing games it should have not lost and obviously you come to the situation where you play under pressure and need to find a way out".
"Even in a game where you're playing against big players".
City will need to assess the fitness of David Silva and Aguero ahead of the derby.