ROBIN VAN PERSIE, the captain of the Netherlands, has declared himself 100% fit for the World Cup as the Dutch national side arrived in Rio de Janeiro.

The Manchester United striker was withdrawn at half-time of his country's final warm-up game against Wales in Amsterdam on Wednesday with a groin issue but insisted it was only a precautionary measure after some discomfort.

Van Persie added that he had also fully recovered from the knee injury which kept him out action for two months towards the end of the Barclays Premier League season.

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"Against Wales, I stayed behind in the changing room for the second half just to be careful because the match against Spain is much more important," he said of the opening game for the Dutch in Salvador on Friday - a repeat of the 2010 final.

"My groin was progressively a little irritated. If it had been a sudden pain I would been concerned but you can't really even call it an injury.

"I've had no twinges from the knee since the injury healed and that's several weeks now. I've had to make an effort to get my fitness back and that I've build up perfectly in training over the last weeks."

The Dutch will also face Chile and Australia in World Cup Group B.