![Mohammed Al Hammadi, left, has dedicated his World Para Athletics Championship success to Abdullah Hayayei. Simon Cooper / Press Association](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/TNCIJG6AI2ZCCSKALAO7XN2LUE.jpg?smart=true&auth=dc59aa940ccd3d112a813637c42643dfb2302a639f3ae12b3fc3147d14a6ccb6&width=400&height=225)
Mohammed Al Hammadi, left, has dedicated his World Para Athletics Championship success to Abdullah Hayayei. Simon Cooper / Press Association
Mohammed Al Hammadi, left, has dedicated his World Para Athletics Championship success to Abdullah Hayayei. Simon Cooper / Press AssociationAl Hammadi reveals battle with grief during World Para Athletics Championships
Emirati won four medals in London while struggling to come to terms with the death of Abdullah Hayayei.