Navas up for challenge after Madrid move
Real Madrid goalkeeper Keylor Navas waves during his official presentation at the Santiago Bernabeu stadium on August 5, 2014 - by Gerard Julien
"I know I will have to work extremely hard. Madrid have the best players in the world in every position, they have two excellent goalkeepers," said Navas as he was unveiled to fans and the media at the home of the European champions.
Navas is tipped to get the nod ahead of club legend Iker Casillas to start in goal for Carlo Ancelotti's side, while Diego Lopez looks likely to be forced out.
"Only God knows what will happen. It is up to me to train hard every day so that I am ready if my opportunity comes around," said Navas.
"I have always looked up to Casillas and Diego Lopez, who have shown themselves to be the best in the world over many years.
"It will be a learning curve for me every day. They are a reference for me in my career."
Last season, Lopez was Ancelotti's first choice in goal in La Liga but captain Casillas was used in the triumphant Copa del Rey and Champions League campaigns.
Navas, 27, arrives in the Spanish capital from Levante on a six-year deal after Real reportedly paid the 10 million-euro ($13.4m, £8m) release clause in his contract with the Valencia-based side.
He rose to international prominence with his performances at the World Cup, when he starred during unfancied Costa Rica's run to the quarter-finals, where they only succumbed on penalties to the Netherlands.
"The World Cup was wonderful for me. Playing against the best teams makes one improve," said Navas, who was warmly welcomed by Madrid president Florentino Perez.
"You will have the pride and the honour of being the first man from your country to play for this club," Perez told his new recruit, who was named as the winner of the Golden Glove by FIFA as the best goalkeeper of the recent tournament in Brazil.
"His performances were key in helping Costa Rica reach the quarter-finals for the first time in their history."
Navas is Madrid's third summer signing, following the arrivals of Germany's Toni Kroos from Bayern Munich for a reported 30 million euros and Colombia's James Rodriguez from Monaco for around 80 million euros.