​Manchester City manager Pep Guardiola has opened up about his side's chances in Europe, claiming that, they are still "teenagers in the competition" as they prepare to face ​Schalke in the round of 16 second leg on Tuesday.

City came from behind to win the first leg 3-2 and are touted as the favourites to win the Champions League this season, despite not having won the tournament in their history. However Guardiola is not taking the favourites tag to heart, believing that his side still have a long way to go in order to win the competition.

"We cannot deny how strong other teams are. You have to dream, to point as high as possible and at the same time accept there are other teams thinking the same. All the clubs that are in the knockout stages want to win this title. It is difficult. This competition is judged that when you are out of the last 16 it is a big disaster. My perspective is completely different," he said as ​quoted by BBC.

"People say it is easy. Imagine to get into the last eight teams in Europe? Of course we want to win it but the other teams also have this desire. People think that because Real Madrid are not there, this competition will be easy. Of course I thought they were the favourites but there still remains incredible clubs to beat," he added.

It will be interesting to see how the tactics of Guardiola's side considering that there will be massive pressure on them to progress to the quarter-final stage.