Top 5 debutants at the 2018 Football World Cup

#3 Dybala

Will we see the Juventus duo repeat their success with the national team?

After missing out of the Copa America squad in 2016, this will be his first major tournament with the Albiceleste.

Dybala has won everything domestically possible with Juventus, and every transfer window he is rumored to be moving to some club. At merely 24, he has been talked up to be Messi's successor in the national team and surprisingly, that has not taken a toll on him.

His debut for the national team came on 13 October, 2015 during their 2018 World Cup qualifier game against Paraguay. After Messi dragged Argentina into the World Cup by the scruff of their neck, it will be up to the rest of the team to come good now.

Dybala looks most likely to be employed as one of two strikers up-front if Aguero isn't fully fit for the entire duration of the tournament. But he is most effective for Juventus playing as an attacking mid-fielder, so pushing Messi to the right and employing Dybala at the centre could be an option.

Sampaoli's high-pressing football is something that is still new for his players, and they will need Messi at the centre to help in the transition, and this could be a reason why Dybala might have to give up his favorite playing position.