Ethiopia's 1,500 metres world record holder and 2015 world champion Genzebe Dibaba has withdrawn from the world championships starting in Doha next week due to a foot injury, her management company said on Thursday.

The Ethiopian, who set a new 1500m world record in 2015 of 3:50.07 before clinching the world title in Beijing, was diagnosed with a partial rupture in her right foot after the Zurich Diamond League meeting in August, Pineda Sport said in a statement.

Her withdrawal leaves Kenya's defending champion and Olympic gold medallist Faith Kipyegon and Ethiopian-born Dutchwoman Sifan Hassan as the favorites for the title.

In another blow to the blue riband race at the global competition, Kenya's 1,500m defending champion Elijah Manangoi announced earlier this week that he would not be defending his title due to injury.