British athlete Jenny Meadows has been ruled out of the World Championships in Moscow with a leg injury.
The 32-year-old will play no part in the rest of the season after suffering a stress fracture in her femur.
Meadows was unable to compete in last summer's London Olympic Games due to an Achilles injury, which has hampered her for some time.
The athlete finished fourth in the 800m final at the European Indoor Championships in Gothenburg in March.