Britain's Dina Asher-Smith has withdrawn from the British Grand Prix event in Gateshead on Tuesday, her last race before the Tokyo Olympics, due to a tight hamstring.
The 25-year-old sprinter was due to run in the 200 metres at the Diamond League meeting as part of her buildup to the July 23-Aug. 8 Olympics but said she had to make the "smart" decision and not take any risks.
"As you all know, I love running in front of a home crowd but I have to make smart decisions for myself and my body ahead of Tokyo!" the 2019 world champion said in a statement on social media on Sunday.
"I'm sorry to those who were hoping to see me run this week but I'm looking forward to making you all proud in a few weeks time."