Tatsuhiro Yonemitsu, who won the London Olympic gold medal in men's 66-kg freestyle wrestling, will be unable to compete at the world championships in September, the Japan Wrestling Federation said Friday.

Yonemitsu had been slated to take part in the All-Japan Selection Championships this weekend at Yoyogi National Gymnasium, but has pulled out after complaining of dizziness. He will thus be ineligible to represent Japan at the world championships in Budapest.

According to his company, Yonemitsu had been training for the All-Japan selection event, which would have been his first real competition since last summer's Olympics. However, he began complaining of poor health about a month ago.

On Thursday, Yonemitsu was diagnosed with positional vertigo. Although not serious, his condition requires a week of rest.

Yonemitsu is aiming to make a comeback at the All-Japan Championships in December.