Mitrovic's 90th-minute header left Cristiano Ronaldo and Portugal stunned in a 2-1 win for Serbia in Lisbon, which gave Serbia an automatic qualifying spot at the World Cup in Qatar.
The Serbian football federation says defender Luka Milivojevic has tested positive for the coronavirus ahead of the European Championship playoff match against Scotland.
Brazil haven't been at their best in the first two games, playing out a 1-1 draw against the Swiss and having to wait until injury time to finally secure the goals and the win against lowly Costa Rica.
The Swiss will advance to the round of 16 if they beat Costa Rica on Wednesday in Nizhny Novgorod whereas Brazil face Serbia in the last round of the group stages.
Serbia defeated Costa Rica 1-0 in their group stage opener and a win over the Swiss at the Samara Arena will nearly propel them to the second round.
Serbia, which missed out on the 2014 tournament, had the early advantage in a tough group that includes five-time champion Brazil and Switzerland.
For Oscar Ramirez-coached Costa Rica, the aim in this World Cup is to improve on their best performance of a quarter-final which they achieved in 2014.
Spain beat Portugal at the 2010 World Cup, and again in the semifinals of the 2012 European Championship, going on to win the tournament both times.
Brazil, Switzerland, Costa Rica and Serbia are part of Group E of the World Cup.
Top News
Latest News
