Arsenal loanee Joel Campbell, and ex-Fulham and current PSV Eindhoven attacker Bryan Ruiz lead the 23-man squad as Costa Rica get prepared for international football's biggest prize, in June.
La Sele announced their provisional squad before mid-May. The CONCACAF representatives are set to face European giants England and Italy, and Copa America champions Uruguay in the group stages.
Jorge Luis Pinto's men look to pull off the unexpected, and make the Round of 16 stage. The task at hand is extremely hard so unity both on the pitch and in the dressing room will be key for the Costa Ricans to make their presence count in Brazil.
Accompanying Joel Campbell and Bryan Luiz will be Levante goalkeeper Keylor Navas, who is in the running for La Liga goalkeeper of the year, and Major League Soccer striker Alvaro Saborio, who currently plies his trade at Real Salt Lake.
Olympiacos striker Joel Campbell (on loan from Arsenal), and PSV Eindhoven attacker Bryan Ruiz lead Costa Rica's 26-man provisional squad
Levante's goalkeeper Keylor Navas earns a World Cup spot after a string of impressive displays for his La Liga team
MLS striker Alvaro Saborio also makes the list
The biggest absentee is Everton's breakout winger/left-back, Bryan Oviedo, who was unable to recover from a broken leg, which he picked up early this year.
Everton's Bryan Oviedo misses out after failing to recover from his broken leg in time
Costa Rica's provisional 26-man squad was cut to 23 on June 3rd:
Goalkeepers: Keilor Navas, Patrick Pemberton, Daniel Cambronero
Defenders: Johnny Acosta, Giancarlo Gonzalez, Michael Umana, Oscar Duarte, Waylon Francis, Heiner Mora, Junior Diaz, Cristian Gamboa, Roy Miller
Midfielders: Celso Borges, Christian Bolanos, Oscar Esteban Granados, Michael Barrantes, Yeltsin Tejeda, Diego Calvo, Jose Miguel Cubero
Forwards: Bryan Ruiz, Joel Campbell, Randall Brenes, Marco Urena