Match three on Friday sees the biggest game of the 2018 FIFA World Cup so far, with fierce rivals Portugal and Spain locking horns at the Fisht Olympic Stadium in Sochi. Portugal come into it as outsiders but it's a tag that'll suit them down to the ground as they bid for a second successive major tournament victory. They won the 2016 European Championships and they'll be quietly confident that they can use that experience to go far in Russia. Facing them though are a foe that they know well in Spain and they're expected to be one of the real front runners this summer. But they were rocked on Wednesday following the news of Julen Lopetegui's move to Real Madrid - resulting in his departure just two days before this encounter so it's going to be interesting to see how they perform.