Caster Semenya says she will not attempt to qualify for the 200m at the Tokyo Olympics after defending her national 5,000m title in South Africa.
The 30-year-old won the title in 15 minutes 52.28 seconds - 42.48 seconds outside the Olympic qualifying time.
"I'm getting old‚ I'm scared to tear my muscles," she said of the 200m event.
The qualifying deadline for Tokyo is 29 June.
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