Manchester United crashed out of this season's Uefa Champions League following a 3-0 (4-0 on aggregate) defeat to Barcelona in Spain on Tuesday evening.
Lionel Messi scored a brace before Coutinho rounded things off with a superb long-range strike as the Catalan club booked their place in this season's semifinals.
Red Devils head coach Ole Gunnar Solskjaer was humble in defeat, duly tipping the Spanish club as favourites to lift the title in Madrid on June 1.
"With the quality they've got, the front three they've got, and players they can bring on like Dembele and Malcom, I wouldn't bet against them," Solskjaer said in the aftermath.
"They would be favourites to win the whole tournament."
The Norwegian went on to praise Messi who scored his 44th and 45th goal of the season in victory over United at Camp Nou.
"He's an exceptional talent, him and Cristiano [Ronaldo] have been the best players in the world the last decade and he showed why we think that and why this team have won the Champions League so many times," Solskjaer added.
"If you give him space and time around the goal he'll create and score goals. Whenever he gets the ball around the box he will be decisive and unfortunately for us he was the winner for them."