Arsenal's team is very strong. And the important thing is that due to the good understanding between the team players, their performance is quite stable. However, I still think this team is not the favourite for the Champions League title.
I watched Arsenal's friendly match against Barcelona. Arsenal won the match 5-3. However, several weaknesses within Arsenal's squad were clearly visible. Barcelona players did not attack much. They still managed to score three goals. If Arsenal wants to maintain continuity in the Champions League, then their defence must be strengthened. Moreover, it is very difficult to consistently perform well in two competitive leagues, Premier League and Champions League.
I wouldn’t use the preseason match to judge because it was a different players that played both halves and also it’s Barcelona started with their best squad. When you mentioned that it is hard to win both champions and the league I wanted to accept but just last season Manchester City won a treble. What I would simply just say is that for a team to win that you need a big squad filled with players of great fighting spirits and Charisma. It is not about the squad been filled with youngsters and that means they can’t do. Manchester United won the 1999 treble with academy graduates. So the zeal is what will drive and it seems lacking at the current Arsenal.