Clifford credited his altitude training and European racing assisting him in winning a medal .
At the 2017 World Para Athletics Championships in London , England , Clifford won the bronze medal in the Men 's 1500 m T13 in a time of 3 : 53.31 .
Clifford credited Clifford 's altitude training and European racing assisting him in winning a medal .
At the 2017 World Para Athletics Championships in London , England , Clifford won the bronze medal in the Men 's 1500 m T13 in a time of 3 : 53.31 .