Allyson Felix leads US gold rush with victory in the 200m while Aries Merritt and Brittney Reese also prevail
Usain Bolt looks incredibly smooth in his 200m heat, but injury-hit Britons bow out in the opening rounds of their events
Lawrence Clarke and Eilidh Child were two of several British athletes to achieve Olympic A standards in Switzerland
Andrew Pozzi wins 110m hurdles at the BUCS Championships in the Olympic Stadium in record time
Golds from Jack Green and Nigel Levine lead GB haul of nine medals on day three, but French triple jump star Teddy Tamgho picks up season-threatening injury
Andy Turner leads English sweep of 110m hurdles medals on Friday at Commonwealth Games in Delhi