Portugal face Chile in their Confederations Cup semi-final on Wednesday night

It will see Portugal's Cristiano Ronaldo go head-to-head with Chile's Arturo Vidal

In April, Bayern Munich's Vidal was sent off against Ronaldo's Real Madrid

Vidal has hit out at 'smart a**' Ronaldo, insisting that he 'doesn't exist' to him

Chile talisman Arturo Vidal has condemned Portugal captain Cristiano Ronaldo ahead of the two sides coming together on Wednesday.

The South American Copa America winners take on their European Euro 2016 counterparts at the Kazan Arena in the Confederations Cup semi-final, held in Russia.

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And ahead of that match, Vidal has blasted Portugal's No 7 as a 'smart a**' and even predicted that Chile will bypass them en-route to facing Germany in Sunday's final - despite the World Cup winners having to play Mexico in Thursday's other semi-final.

Cristiano Ronaldo has come under attack from Arturo Vidal ahead of Wednesday's encounter

The Portugal captain has been blasted as a 'smart a**' ahead of their Confederations Cup semi

Vidal will hope to back up his words when Chile take them on at the Kazan Arena in Russia

He also predicted too that he will face Germany's Joshua Kimmich (right) in Sunday's final

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Chile earned a spot in the knockout stages by finishing second in Group B, behind the Germans while Ronaldo led Portugal to top of Group A ahead of Mexico.

Ronaldo has scored twice and set up another for Fernando Santos' side but that hasn't impressed Vidal.

'Cristiano is a smart a**!' Vidal told reporters in Russia. 'For me he does not exist.

'I have already told my Bayern Munich team-mate [and Germany international] Joshua Kimmich that we will meet again in the final!'

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Vidal's encounter with Ronaldo will be he his first since April when the former was sent off for Bayern Munich as they were knocked out in the Champions League quarter-finals by eventual winners Real Madrid.