Juan Antonio Pizzi's side were held to a 1-1 draw by world champions Germany last time out, when Alexis Sanchez' early goal was cancelled out by Lars Stindl's effort in the 41st minute. Despite failing to emerge victorious, the stalemate meant that the Chileans maintained their position at the summit of the standings heading into the final round of group stage fixtures, and it is they who look in good shape to finish in first place. The two-time Copa America victors dazzled supporters with their brand of high-octane, heavy-pressing and attacking football throughout the summers of 2015 and 2016, both of which ended in success; the way things are going so far in Russia, they are probably favourites to get their hands on another piece of silverware in just over a week's time.
Australia's failure to beat Cameroon on Thursday - the game ended 1-1 after goals from Andre-Frank Zambo and Mark Milligan - means their qualification hopes are hanging by a thread ahead of Sunday's showdown at the Otkritie Arena. Nevertheless, a triumph over Chile by a margin of two goals or more would see the Socceroos climb above the South American representatives and make it through to the semi-finals against the odds; it is, therefore, too early to write them off, even if Ange Postecoglou's charges are in a difficult position at present. The realistic aim heading into the tournament was probably to finish third in the group, and Australia's superior goal difference means they are currently favourites to do so ahead of African champions Cameroon.
Pizzi's predecessor Jorge Sampaoli used to regularly switch between three-man and four-man defences during his time at the helm, but the incumbent is more wedded to a 4-3-3 formation. Sanchez's recovery from injury is a major boost to the side, while Pablo Hernandez could retain his place alongside Charles Aranguiz and Marcelo Diaz in the centre of midfield. It will be interesting to see whether Chile stick with Johnny Herrera in goal or bring back Claudio Bravo, who has been a mainstay of the national team throughout the current era.
Australia shifted to a 3-4-2-1 against Cameroon, which seemed to stiffen up their backline. The same configuration is likely to be employed here, with Tomi Juric supported by two of Robbie Kruse, Tom Rojic and Aaron Mooy, who was used in a deeper role on Thursday but could be pushed forward if the Socceroos want to tighten up their midfield.
Taking everything into account, it is worth putting some money on Chile getting the better of Australia this weekend. Pizzi's players will surely have too much quality for the Asian champions, whose need for a two-goal victory could leave them vulnerable to the counter-attack. A Chile win to nil is one wager worth considering, while Arturo Vidal's license to break forward could result in him finding the net anytime.