The 2018 World Cup is well underway and there are a number of players that have already made a big impact for their country in their opening group game, and surely some of them will have caught the eye of Wolverhampton Wanderers manager Nuno Espirito Santo.

The 44-year-old has already added Willy Boly to his squad on a permanent basis as well as wrapping up the arrivals of Raul Jimenez and Rui Patracio, but the Portuguese boss will surely want to add more quality to his squad in order to ensure they don't find themselves in a Premier League relegation battle this season following a brilliant promotion campaign.

Considering how ambitious their owners are the west Midlands outfit, who could be set to deliver another marquee signing if they sell a £9m-rated key man, may even be targeting Europa League football and if they want to achieve that, Santo may need to strengthen his team in the wing-back and attacking areas in particular.

The former Porto boss will already have some targets in mind, but he may have been convinced by the impressive displays of a number of individuals in Russia, too.

Here are three World Cup stars that Santo has surely added to his summer transfer wishlist…

If Nuno Espirito Santo really wants to progress and aim high up the standings with Wolves in their first season back in the Premier League, he will know that he perhaps needs to strengthen in the wing-back positions, which would include finding an upgrade on Matt Doherty despite an impressive campaign for the Irishman.

Varela was brilliant for Uruguay in their win against Egypt with a passing accuracy of 96.4% from 55 passes, as per WhoScored.com, and while he made three tackles and one interception at the back, he also showed his attacking ability by completing one dribble and making one key pass.

The former Manchester United man is currently with Penarol, but he may well find himself back in European football this season if he continues to impress.

Similarly to with Doherty, Santo may want an upgrade on Barry Douglas on the opposite flank despite a standout 2017/18 campaign for the Scotland international.

If he is looking for a wing-back that is able both defensively and from attacking point of view, he could do a lot worse than take a look at Mexico's Jesus Gallardo, who only joined Monterrey from Pumas UNAM last month.

However, following a stunning display in his country's win against the holders Germany he could be targeted by a number of European clubs, and a big offer could be enough to tempt his new club and the player to accept a move to the Premier League instead.

If Wolves are in need of another attacking midfielder who can also play wide this summer, they could do a lot worse than bring FC Porto's Quintero to Molineux – especially following his brilliant goal for Colombia against Japan on Tuesday.

The 25-year-old usually plays on the right but started in a central role in the absence of the injured James Rodriguez against the Asian outfit, and he scored a clever low free-kick to put his country back in the contest following an early red card.

Clever and quick, Santo should go all out to bring the Colombian to the west Midlands before August 9.

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