It's easy for Chelsea to play a team in other leagues than teams in EPL. I thought that Chelsea will start this season in a grand style and win three consecutive matches but they failed to win their first match. From the look at their performance yesterday, Maresca needs to work more on the team to stable their performance. Let it not be that they will be very strong in one match and become weak in three to four matches.
Because the season is still very long for all teams, including Chelsea, the Chelsea manager clearly needs to improve tactical stability and team strength. Chelsea also needs to excel in the Premier League and the Champions League, as several Premier League teams are also participating in the Champions League next season. However, it would be very surprising if Chelsea could go far in the Champions League and even become a title contender in the Premier League, although I still have some doubts that Chelsea can achieve that this season.