As reported on Real Madrid official site, 29 years old goalkeeper Keylor Navas will miss Copa America as a Costa Rica player, in order to undergo surgery. Here's the official note:
"After the tests carried out today on player of ours, Keylor Navas, in Amsterdam, Niek van Dijk M.D., under the supervision of Real Madrid Sanitas medical services, decided to carry out a left heel minimally invasive endoscopy.
The surgery will take place on 9th June in Madrid, and will be performed by doctors Van Dijk himself, Pedro Luis Ripoll and Mariano de Prado, under the Real Madrid Sanitas medical services' supervision".
Source: transfermarketweb.com