Liverpool have been handed a major boost ahead of their Champions League second leg clash to Manchester City on Tuesday, with star striker Mohamed Salah expected to be fit enough to start, according to the Times' Paul Joyce.
The same happened earlier in the season when the Premier League Champions to be coughed up three goals in nine second half minutes and Guardiola admits that this has been a problem throughout his managerial career, recalling a defeat to Barcelona as Bayern Munich manager in 2015.
"The most important thing for us is a clean sheet because if they score we have to score five".More news: West Ham striker Hernandez pushes Moyes to start him
"We need to create chances and concede few chances, and the chances we receive (against) we have to defend well". Raheem Stertling, in particular, was guilty for missing two clear-cut opportunities during the first-half, which should have killed the game. "The chances we receive (against) we have to defend well", Guardiola said.
"Sometimes we need to play better - myself as well - but you can't deny that some legs are a bit exhausted".
"And we didn't close it against United".
"Our fans will be together with us, and we are going to fight to the end".More news: Trump would regret abandoning nuclear deal, warns Iran
He continued: "If we are not able to go through because of psychological damage then it will be a good lesson for the future".
"We should play our game like we did in the first leg because that is what made us so strong. We know that and the opponents know that".
"It is nice to play in that stadium where you were for a couple of years and didn't get a first-team appearance - at least I get to play now", added Karius.
"Beating Barca (last season) was so special because we know they're the best team in the world but it will happen sooner or later".More news: Raikkonen tops Bahrain Grand Prix practice