The match will be held at Camp Nou. Barcelona are always favorites in home matches. Players are very confident. This makes it easier for them to defeat their opponents. Also if we compare the performance of Barcelona and United then it can be said that Barcelona team will be slightly ahead. Because although United is in a stable state compared to before, United still has many weaknesses within the team. On the other hand, apart from the defense, I don't see any weakness of Barcelona now. Their performance is very stable and consistent now.
@BALIK the key reason why I feel that Barcelona will underperform is their fear of losing the top spot in La Liga, hence I feel that theyll not be fully focused when they face Manchester United. Furthermore while Eriksen is injured,
Fred can step up and replace him as he and Casemiro have a solid understanding and thatll further help Manchester United when they face Barcelona.
There is a possibility that Barcelona may not field their best players and instead focus on la liga, but I do not think that they will do that. There is a possibility that they will face someone easier next game if they beat United, which means they could rest their players there and right now they are leading the league with 5 points which means that they have a chance to lose at least one game and they could field bench players on that league game and rest them while they get ready for United game. That could be a lot better and give them either a win against United and win at the league, or win against United and loss in a single league game. Both are fine.