Team GB loses its bronze medal in the 4x100m men's final for an illegal changeover.
British sprinter Adam Gelili has tweeted about his team being disqualified from the 4x100m relay at the World Athletic Championships in Moscow today:
Thank you all for the messages of encouragement. To be so close to receieving a medal and have it taken away is heartbreaking
As a team we will pick ourselves up and carry on until we get it right. Onwards and upwards!
BIg up to the GB 4x100m women on receiving the news for bronze. Extremely proud! Just a shame they don't get their moment on the podium
Adam Gemili is going for World Championship glory tonight, just 18 months after swapping football for a career in sprinting. Only 19, the former Dagenham and Redridge defender will line up in the 200 metres final next to world record holder Usain Bolt in Moscow.
Gemili goes into the race fresh from a remarkable day in which he became only the second Briton ever to break the 20-second barrier.
Having headed to Russia with a personal best of 20.30 secs, he lowered that to 20.17s before producing a 19.98s semi-final sprint - a time quicker than that managed by Bolt yesterday.