#3 Arturo Vidal vs Andy Robertson

This battle, in all likelihood, should have been between Robertson on the left wing and Sergi Roberto at right back, but it is to Vidal's credit that he managed to nullify the Scot's attacking presence on the field.
It was quite obvious early on that Barcelona were going to struggle defensively on the right with Robertson and Mane doubling up down the flank, and it is only thanks to Vidal's defensive prowess that they did not pay the price.
Messi might be the Man of the Match, but it was Vidal who was the most influential player for Barcelona on the night, as he found himself all over the pitch, winning balls he had no business of winning and stopping balls that he should not have gotten near to. He ended the night with 5 tackles as against Robertson's 4, and 2 interceptions to his name.