Vidal`s World Cup in balance as he goes into knee surgery

Santiago: Juventus midfielder Arturo Vidal will have knee cartilage surgery in Barcelona on Wednesday, casting doubt over his hopes of playing for Chile at the World Cup finals.

Vidal`s recovery time hinges on how the operation goes, though the situation does not look good, according to a source on the medical team treating him in Barcelona.

A key member of Chile coach Jorge Sampaoli`s team, Vidal has suffered a tear to the external meniscus of his right knee. He aggravated the problem playing for Juventus, crowned Serie A champions at the weekend, in the second leg of their Europa League semi-final against Benfica last Thursday.

Chile were pinning their hopes on the versatile and energetic 26-year-old midfielder in a tough group at the tournament in Brazil starting on June 12 and his absence would be a major blow to the Andean team.

The Chileans face world champions Spain, the Netherlands and Australia in Group B.