Tunisia’s Ahmed Hafnaoui won the men’s 800m freestyle at swimming’s world championships on Wednesday. Hafnaoui, the reigning Olympic 400m freestyle champion2, took silver behind Short in the 400m freestyle on the competition’s opening night. Qin Haiyang wins 50m breaststroke gold Gold medallist Haiyang Qin of Team China looks on during the medal ceremony for Men’s 50m Breaststroke Final on day …
