PARIS: Guillermo Maripan scored the winner three minutes from time to see Chile past World Cup-bound Serbia in a friendly on Monday.
Maripan knocked in a Marten Rodriguez cross from close range in the 87th minute for the only goal of the game in the Austrian city of Graz.
In Geneva, Slovakia took the lead against Morocco, also headed for Russia, in the 59th minute through Jan Gregus.
But the north Africans came back to record a 2-1 win after goals from Ayoub El Kaabi (64) and Younes Belhanda (74).
Morocco are in Group B alongside Portugal, Spain and Iran, while Serbia are in Group E with Brazil, Switzerland and Costa Rica.
Serbia continue their tournament preparation with a friendly against Bolivia on Saturday while Morocco take on Estonia in Tallinn.