A decision by the Slovak Athletic Federation (SAZ) to clear Olympic 50 kilometres race walking champion Matej Tóth of doping is set to be investigated by the Athletics Integrity Unit (AIU). 

Yohann Diniz, who turns 40 on January 1 next year, became the oldest male athlete in the history of the International Association of Athletics Federations (IAAF) World Championships to win a title as he earned France its third gold here in the men’s 50 kilometres walk - on a day when Portugal’s Ines Henriques secured a historic victory in the inaugural women’s event.

Slovakia's Olympic 50 kilometres race walk gold medallist Matej Tóth has pulled out of next month's International Association of Athletics Federations (IAAF) World Championships in London because he revealed he is being investigated for allegations of doping. 

Matej Toth, winner of the men’s 50 kilometres race walking world title here today in 3 hours 40min 32sec, said afterwards he will not compete at next year’s World Race Walking Cup in Cheboksary because of the doping scandal involving many Russian walkers coached by the now suspended Viktor Chegin.