Xherdan Shaqiri (Switzerland)
The nimble winger will be Switzerland's biggest threat in Russia and after Stoke City's relegation to the Championship, there's no doubt that he will be looking for a move away from the 'Potters'.
Marouane Fellaini (Belgium)
An aerial threat from the bench, Fellaini could be the type of player to grab an important goal for Belgium at this summer's World Cup. If he does, plenty will be hoping to snap up this free transfer.
Toby Alderweireld (Belgium)
The centre-back hasn't seen much playing time at Tottenham this season but he will be a guaranteed starter for his country. If he helps Belgium secure a tight defence throughout the tournament, Alderweireld could be in the running for a big-money summer move.
Goncalo Guedes (Portugal)
Guedes is expected to be sold by PSG this summer and some electric performances in Russia would go a long way to help negotiations with potential suitors.
Alisson (Brazil)
Real Madrid, Chelsea and Liverpool are all chasing the shotstopper but his price could rise significantly if his saves keep Brazil in the tournament.
Mateo Kovacic (Croatia)
With Luka Modric and Toni Kross bossing midfield, Kovacic has been on the periphery for Real Madrid. However, some big performances at the World Cup could help him secure a move elsewhere.
Ki Sung-Yueng (South Korea)
Similarly to Shaqiri, Ki finds himself struggling with the concept of playing in the Championship next season after Swansea's relegation. Getting South Korea out of the group stages at the World Cup, would undoubtedly improve his stock though.