Costa Rica Goalie Keylor Navas Practices By Saving Tennis Balls

Costa Rica goalie Keylor Navas has an interesting way of warming up before a match. The 27-year-old Navas trains by having a tennis player hit shots his way at goal. The tennis ball tactic is one way to make a soccer ball seem bigger than it really is. Costa Rica, which beat Greece on free kicks, will face Netherlands in the Round of 8.