Former United States boss Jurgen Klinsmann has made enquiries over the vacant Australia head coach position, according to the Adelaide Advertiser.

The Socceroos will play at the 2018 World Cup but are without a manager after Ange Postecoglou sensationally resigned just days after helping the Asian champions qualify, and Klinsmann, who is without a job after being sacked in November 2016, is reported to be interested in the role.

The media outlet reports that the 53-year-old made a phone call to "one of his closest friends" -- a former Australia international -- to ask about the A-League, the quality of the Socceroos and how competitive the side could be in Russia.

Jurgen Klinsmann is reportedly interested in the vacant Australia job. Trevor Ruszkowski-USA TODAY Sports

Drawn on Friday alongside France, Peru and Denmark in Group C, Australia have been placed in an easier group than previous World Cups, but are still considered long-shots to get any further than the group stage.

Klinsmann reportedly is interested in the position because "Australia has a very similar sports landscape to the U.S." but could be put off by the salary on offer -- said to be almost half the wage the German was paid as USMNT head coach.

Klinsmann may face stiff competition for the role, with ex-Paris Saint-Germain boss Laurent Blanc already sounded out by the Australian federation, according to his agent Jean-Pierre Bernes -- who also claimed his client is also a target of U.S. Soccer.