PHOTOS: The gold medallists on Day 15 at Rio Olympics

Check out the winners on Saturday, Day 15 of the 2016 Games in Rio de Janeiro. United States reclaim men's 4x400m title IMAGE: The USA's Lashawn Merritt reacts after winning gold in the men's......

Rio Olympics: United States reclaim men's 4x400m title

IMAGE: Lashawn Merritt of the United States competes during the Men's 4 x 400 meter Relay on Day 15 of the Rio 2016 Olympic Games at the Olympic Stadium on Saturday. Photograph: Cameron......

Bolt wins 100m at London Anniversary Games despite slow start

Usain Bolt returned to the scene of his triple Olympic glory and duly delivered for 60,000 camera-flashing fans as he overcame a slow start to win the 100 metres and give the London Anniversary......

Jamaica crash out in 4x400m relay

Jamaica's bid for the men's 4x400 metre relay gold was cut short by injury on Thursday when Jermaine Gonzales pulled up in qualifying, while South Africa went through on appeal after their race......

Gatlin secures London return ahead of Gay

Justin Gatlin is back. So is Tyson Gay. Eight years after winning Olympic gold and two years after concluding a doping ban, Gatlin secured his return to the Games by running an eye-catching 9.80......