Roberto Mancini: "I think every game could be difficult when you play every three days and at the moment Manchester United have a lot of games, important games, Champions League, FA Cup.
"We hope they can lose points but we don't know when or where.
"I think that Real Madrid, for me, are the best team with Barca at this moment and it will be hard for Manchester United.
"They played well in Madrid. In this game, I think everything is possible, all results."