Manchester United boss Jose Mourinho admits he enjoyed the results last week in Europe.
Mourinho feels it's proof there's no certainties in the game.
He said: "In every competition, [it] was in the Champions League, it was in the Europa League. In Austria, three goals in six minutes, what happened with Roma, what happened with Real Madrid-Juventus.
"So many results that give me reason, when I always tell my players that, in football, anything in possible – both ways. You can be winning 3-0 and the result is not safe, you can be losing two or three-nil and the match is not lost. Big teams, small teams - what is that in football? Football is an incredible sport."