US' Michelle Carter competes in the woman's shot put during the Diamond League athletics competition at the Suhaim bin Hamad Stadium in Doha, on May 5, 2017. / AFP PHOTO / KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)
US Christina Manning and Kendra Harrison compete in the women's 100 metres hurdles during the Diamond League athletics competition at the Suhaim bin Hamad Stadium in Doha, on May 5, 2017. / AFP PHOTO / KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)
USA's Sandi Morris competes during the Pole Vault at the Diamond League athletics competition at the Suhaim bin Hamad Stadium in Doha, on May 6, 2016. / AFP / KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)
