Six swimming world records have fallen in the first two days of competition at the Rio 2016 Olympics. Great Britain's Adam Peaty set his second world record in consecutive days, winning the men's 100 breaststroke by a huge margin of 1.56 seconds. The US men's team won the 4x100 freestyle relay. Michael Phelps, the most decorated Olympian of all time, now has 19 golds, two silvers and two bronzes.

In tennis, world number one Novak Djokovic was dumped out of Rio Games in the first round by Argentina's Juan Martin del Potro. The Serbian left the court in tears following the loss. On a day of upsets, the Murray brothers and Williams sisters also crashed out in the doubles.

After the first two days of competition, the US, China and Australia top the medals table with three golds each. Great Britain currently has one gold and one silver, but with more swimming, plus Tom Daley and the men's gymnastics team in action today (Monday 8 August) Team GB could add to its medal haul.
IBTimes UK presents the best photos from the first few days of competition at the Rio 2016 Olympics.

French gymnast Samir Ait Said suffered a broken leg that was left dangling from below his knee following a crash landing from the vault. He was wheeled out of the arena on a stretcher. Britain's Ellie Downie had a scare when she mistimed a somersault during her floor routine and landed on her neck.

Rio 2016 Olympics best photos
French gymnast Samir Ait Said breaks his leg while competing on the vault Scott Halleran/Getty Images

Schedule highlights - All times BST