Alexis Sanchez had a late penalty saved as Chile fell to a 3-2 defeat at home to Costa Rica.
Kendall Waston scored twice as Costa Rica survived a late rally from Chile to record a 3-2 away win in an international friendly at Rancagua's Estadio El Teniente.
The visitors, who had not won in their previous nine international matches dating back to before the World Cup in Russia, benefited from some poor defending from the hosts as they led 3-0 just past the hour mark on Friday.
Central defender Waston rose highest in the 36th minute to head home Joel Campbell's corner, despite the efforts of Arturo Vidal, who could not clear off the line.