|Dates: 23 July-8 August Time in Tokyo: BST +8|
|Coverage: Watch live on BBC TV, BBC iPlayer, BBC Red Button and online; Listen on BBC Radio 5 Live, Sports Extra and Sounds; live text and video clips on BBC Sport website and app.|
Great Britain’s world champion Dina Asher-Smith has pulled out of the Olympic 200m after revealing she tore her hamstring earlier this month.
The 25-year-old, who suffered the injury while at the British Championships, failed to make the 100m final after running 11.05 seconds in the semi-finals earlier on Saturday.
“It broke my heart because I am a competitor,” a tearful Asher-Smith told BBC Sport.
“It is the Olympics but there are plenty other championships for me to come and kill.”
More to follow.