CHRISTIAN Malcom's Olympic swansong was marked by a handover error in the sprint relay which saw Team GB disqualified from the semi-final.

The sprint relay team missed out on a place in the final of the 4x100 metres following a mistake in the baton changeover at the Olympic Stadium.

The host nation was disqualified when anchor leg runner Adam Gemili set off too early as he was about to take the baton from Danny Talbot.

The 18-year-old athlete slowed down dramatically, but the changeover still occurred outside the designated area. Gemili sprinted for the line and came home second, but realised their mistake, putting his hands on his head in despair.

Jamaica, without Usain Bolt, qualified safely, but the United States were the quickest through in a new national record of 37.38 seconds.