Great Britain's Mo Farah launched the world athletics championships in scintillating fashion with another 10,000 metres triumph

With 55,000 of home fans roaring their support at the London stadium, the 34-year-old embellished his claim to being greatest distance racer with 10th consecutive gold medal in a global track final.

Farah survived being clipped twice from behind in final lap before unleashing a trademark burst down the home straight to burst away from Ugandan silver Medallist Joshua Cheptegei and Kenyan bronze medal winner Paul Tanui.

The Briton clocked 26 minutes 49.51 seconds, the World's fastest time in 2017.

Cheptegei clocked a lifetime best 26:49.94 and Tanui 26:50.60

Usain Bolt took his first, steps towards a World Championship farewell as he recovered from a poor start to win his heat in the first round of the 100 metres in 10.07 seconds.

The Jamaican is seeking his fourth gold in the event - he has won the 100m at every world championships since 2009 apart from 2011 in Daegu when he was disqualified for a false start.

America's world and Olympic Champion Justin Gatlin, twice banned for doping offences, was loudly booed by many in the 55,000 crowd when his name was announced and again when he won his heat in 10.05.

American 21-year-old Christian Coleman, fastest man in the world this year with 9.92, looked smooth in winning the first heat in 10.01.