The group stage is going to go on very comfortably for Real Madrid. We must have all understood it from their winning against Napoli away recently. That was technically the toughest match of the group. But even Napoli couldn't stop them in Naples. I can already be confident that Real Madrid will finish as group leader.
The important point is what they will do against the biggest title contenders. Especially against Manchester City and Bayern Munich I mean. If they manage to show a strong team performance with the help of their main scorer Bellingham too then I wouldn't be surprised to see Real Madrid adding another CL title to their collection.
