Attacker Alexis Sanchez is a major doubt for Barcelona's home La Liga clash against Real Zaragoza after suffering a knee injury during Chile's 3-1 defeat in Serbia on Wednesday.

Sanchez was hurt in a challenge with Serbian midfielder Luka Milivojevic after just 20 minutes of the game, and was replaced by Manchester United's Angelo Henriquez, who went on to score on his full international debut.

Initial reports suggested he had twisted his right knee, but the full extent of ...

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