Guardiola needs to focus on getting his players well-prepared for this kind of matches this time.
The draw will be tomorrow, I'd be happy Manchester City didn't have a strong opponent but it's always possible to come up with a challenge early on. The next problem is, Guardila has to give up some of his players to compete in the world cup, this will make some different feelings for the team coach because every player is always injured while defending his national team. But since the last 16 will take place next year, there is a lot of time and preparation to look forward to.
Manchester City is a strong team. Their match strategy is excellent. Also they have a strong squad. And so Manchester City players have the ability to win against any team. However, no team in the Champions League knockout round can be called weak. They managed to qualify for the second round by performing well in the first round. And every team in this round is strong. So if City's goal is to win the title, they will have to perform very carefully in every match. If they perform poorly in any match, they will be relegated. It is very important to perform carefully in every match of this round.