Chile midfielder Arturo Vidal has said he hopes to see "balanced" refereeing when his team take on Brazil in Saturday's World Cup round of 16 clash.
Host nation Brazil were awarded a debatable penalty in their opening 3-1 win over Croatia, while a seemingly offside goal by out-of-form striker Fred was allowed to stand in Monday's 4-1 victory over Cameroon.
Chile were angered by the officiating as they were beaten 2-0 by Netherlands in their final group game, after which Ghanian official Bakary Gassama was heavily criticised by Chilean FA (ANFP) president Sergio Jadue.
And Juventus midfielder Vidal told AS he hoped for better officiating in Belo Horizonte at the weekend.
"There are five days left and we must prepare the best we can," he said. "We are a little unhappy with how the game went against Netherlands. We had the ball and we did everything, but there was no luck. The refereeing was not balanced. The refereeing in the last 16 will be important -- we hope it is balanced then."
Asked whether he truly believed Chile could knock out the hosts, Vidal said they were full of confidence after their group stage victory over Spain and added: "If we beat Spain, the world champions, why can't we beat Brazil too?"