Defender Milos Degenek is the second Socceroos player to test positive to COVID-19 in the past few days, joining Brad Smith in missing the next two World Cup qualifiers.
Degenek will miss Australia’s qualifying matches against Oman and Japan, with experienced Sunderland defender Bailey Wright to replace him.
Degenek returned a positive test in his pre-departure screening in Serbia, where he plays for Red Star, despite being asymptomatic.
Seattle Sounders left-back Smith was unable to travel to the Middle East after he tested positive last week, although he was also well.
Ten players will arrive in Doha on Tuesday, completing Graham Arnold’s 25-man squad.
The Socceroos face Oman in a ‘home’ match in the Qatari capital on October 8 AEDT before travelling to Saitama for a match-up with Japan on October 12.
Oman defeated Japan in the opening round of qualifiers and victories in these two matches would put Australia in a strong position to claim one of the two automatic qualification spots for the 2022 World Cup.