[VIDEO PICK: Off the Post]
Costa Rica goalkeeper Keylor Navas
, whose superb play has helped the Ticos reach the quarterfinals, prepared for the
World Cup by saving tennis balls slammed at him by Spanish tennis star Pablo Andujar
Navas' feats at the World Cup included keeping the 10-man Ticos even with Greece,
1-1, after regulation and overtime, and stopping Theofanis Gekas
' penalty kick to win the shootout.
The 27-year-old plays for Spanish club Levante, at whose stadium he
performed this impressive stunt.