Vukovic's agent Mikkel Beck revealed today the keeper had injured his Achilles and is undergoing surgery.

The injury usually means at least a four to six month lay-off, although there was speculation he had injured his ACL which would knock him out of action for the whole season.

Vukovic joined Belgian side KRC Genk from Sydney FC in 2017.

The 34-year-old has impressed at Genk and made more than 70 appearances for the club in the past two seasons.

Vukovic helped Genk record a 2-1 victory over Kortrijk in the opening Belgian First Division A league match on the weekend.

The keeper debuted for the Socceroos in 2018 and has three caps for the national team.