Australia face an uphill battle to collect a single point from Group B, let alone qualify for the second round. Here, Chris Mendes takes a closer look at the man likely to skipper the Socceroos in Brazil.
Australia's only regular starter in the Premier League, Mile Jedinak, was rewarded with the captain's armband for a friendly against Ecuador in March 2014.
The decision from new boss Ange Postecoglou was a clear indication that Jedinak will replace veteran Lucas Neill, overlooked for last month's squad, as captain during the World Cup.
It was a mixed first outing as skipper for the defensive midfielder, who scored after 16 minutes as the Aussie's raced into a 3-0 first-half lead, only to lose the match after conceding four to the South American's in 33 second-half minutes.
Defensive midfielder Jedanik arrived at Crystal Palace on a free transfer in June 2011, recommended to then manager Dougie Freedman by fellow Aussie and right-hand man, Tony Popovic.
He immediately endeared himself to the fans with controlling and energetic performances, breaking up play in midfield and spreading the ball across the pitch effectively from a deep-lying central position.
It was testament to Jedinak's impact and leadership skills when he was awarded the Palace armband in August 2012, little more than 12 months after joining the Eagles, after club captain Paddy McCarthy suffered a long term groin injury.
The season ended with a double victory for Jedinak, crowned Crystal Palace Player of the Year three weeks before helping Ian Holloway's team achieve promotion via the Championship play-offs. It was the Australian's header on the final day of the season which had secured the Eagles' play-off spot, consigning Peterborough to relegation.
With an imposing 6 ft 3 in frame and considerable aerial ability, it was no surprise when Jedinak began courting interest from top flight stalwarts Stoke City, despite having moved to England a relatively unknown player.
The 29-year-old's career started ten years before his move to England, with Sydney United, the same semi-professional club who nurtured former AC Milan goalkeeper Zeljko Kalac.
The midfielder's imposing performances en route to winning Australia's semi-professional Premier League earned him a trial with A-League side Central Coast Marriners, who promptly secured his signature for their remaining ten games of 2006/07.
Jedinak's speedy rise to prominence continued when he was crowned Central Coast Marriners' Player of the Year for 2007/08, helping the Gosford-based club collect their first ever A-League title.
He was named in A-League's team of the season in 2008/09, scoring eight goals from midfield, and earning a transfer to Turkish Super Lig outfit Genclerbirligi, where he enjoyed three successful years – one on loan with Antalyaspor – before deciding to leave in search of a bigger challenge.
On the international stage, this summer's challenge could not be greater for Jedinak, tasked with taking care of the wonderful array of attacking talent available to Spain, Holland and Chile in Group B.
The Socceroos, and Jedinak himself, can take a great deal of confidence from his form at Crystal Palace this season, with the midfielder adapting to the Premier League comfortably as the heartbeat of Tony Pulis' side.
Jedinak is always the last player off the pitch at Selhurst Park, where he makes an effort to thank the home supporters after every match. The Palace fans have quickly grown to love their Aussie captain for his professional attitude, incredible work-rate and leadership during matches.
If Australia manage to surprise any of their more fancied opponents in Brazil, then expect Jedinak to be at the heart of it.