Great Britain's Isaac Towers with his bronze medal (right) with Tunisia's Walid Ktila (centre) and United Arab Emirates' Mohamed Alhammadi after the Men's 800m T34 Final during day eight of the 2017 World Para Athletics Championships at London Stadium. PRESS ASSOCIATION Photo. Picture date: Friday July 21, 2017. See PA story ATHLETICS Para. Photo credit should read: Simon Cooper/PA Wire. RESTRICTIONS: Editorial use only. No transmission of sound or moving images and no video simulation.
Mohammed Al Hammadi, left, has dedicated his World Para Athletics Championship success to Abdullah Hayayei. Simon Cooper / Press Association

Al Hammadi reveals battle with grief during World Para Athletics Championships