Costa Rica take on Serbia in the first game of Group E and with Brazil to come later, both sides will be looking for a good start.
Real Madrid’s Keylor Navas will start in goal for Costa Rica with Arsenal’s Joel Campbell leading the line.
Serbia defender Branislav Ivanovic will become their most capped player with 104 international appearances if he plays today.
Newcastle striker Aleksandar Mitrovic is expected to lead the line for his country having netted 14 goals in his last 18 games for Serbia.
Serbia failed to make it out of the group stages at their last two World Cups, but hopes are high that this talented-looking group can at least make the last 16.
Costa Rica XI: Navas, Acosta, Gonzalez, Duarte, Borges, Calvo, Gamboa, Guzman, Ruiz, Venegas, Urena
Subs: Pemberton, Moreira, Smith, Oviedo, Waston, Gutierrez, Bolanos, Wallace, Azofeifa, Tejeda, Colindres, Campbell
Serbia XI: Stojkovic, Tosic, Ivanovic, Kolarov, Milenkovic, Milivojevic, Milinkovic-Savic, Matic, Mitrovic, Tadic, Ljajic
Subs: Rajkovic, Dmitrovic, Rukavina, Spajic, Veljkovic, Rodic, Zivkovic, Grujic, Kostic, Prijovic, Radonjic, Jovic
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