Maybe one of the reasons for Liverpool's defeat is that they wanted to prepare for the Champions League match. The Champions League is more important and Nottingham was an opponent they did not see as strong. They must have thought that they could beat them in any way and underestimated them. But you shouldn't do that. You should take every opponent seriously, both in the league and in the Champions League. This defeat could even cost Liverpool the championship at the end of the year.
I don't think so exactly honestly. Because if you have noticed so far, top Premier League teams are prioritizing the league title over the Champions League one. This was why Arsenal also couldn't meet the expectations completely in the previous season. I think it was just a bad day for Liverpool. Sometimes you don't manage to win no matter how hard you try...
Anyways, the first game for Liverpool is against Milan. It is at San Siro. What is your opinion?
I think Liverpool will start with a victory. Milan won their last league game but still it doesn't change the fact that they are unbalanced these days.