EILIDH CHILD has finished outside of the medals in the final of the 400m hurdles at the World Championships in Beijing. The Scot took sixth place behind the favourite and defending champion Zuzana Hejnova of the Czech Republic who won in a time of 52:50. American Shamier Little took silver, with compatriot Cassandra Tate winning bronze.

Meanwhile, Kenyans Joyce Zakary and Koki Manunga have become the first athletes to fail drugs tests at the championships. The International Association of Athletics Federations announced that the pair had accepted provisional suspensions after testing positive before competition got under way. An IAAF statement said: "These targeted tests were conducted by the IAAF at the athlete hotels during the pre-competition phase. The IAAF will not discuss the details of the cases as they progress through the results management process.

Zakary, whose positive test was for a sample provided last Friday, set a new Kenyan 400 metres record of 50.71 seconds in the heats, but the 29-year-old did not start Tuesday's semi-final. Manunga's positive sample was from the day before. The 21-year-old finished second last in her 400m hurdles heat on Sunday.