"Brozovic's Inter Milan and Swedish epidemiologists were informed about the positive test," an HNS statement read.

The player's positive result came two days after defender Domagoj Vida was informed of a positive COVID-19 test after playing the first half of a friendly with Turkey in Istanbul.

Apart from Brozovic, 27, one staff member also tested positive.

They were both isolated from other members of the national team.

After Sweden, Croatia plays another UEFA Nations League game against Portugal on Wednesday (AEDT).

Croatia, the runner-up at the 2018 FIFA World Cup, is third in its UEFA Nations League group, which also includes France, the team that beat it to the FIFA World Cup in Russia, Cristiano Ronaldo's Portugal and Sweden.