News Drama on the court as Djokovic crashes out Spending 40 minutes stuck in an elevator may not be the textbook way to prepare for a match against the best tennis player in the world, but Argentina's Juan Martin del Potro dismissed world no 1 Novak Djokovic 7-6, 7-6 this evening, after being freed by members of his country's handball team, as reported below Del Potro consoles an emotional Djokovic at the end of their match (Photo: Getty Images/Clive Brunskill) Leading men’s players Rafael Nadal and Andy Murray opened their Rio 2016 campaigns with victories, meanwhile, as Nadal beat Argentina's Federico Delbonis in straight sets, and reigning champion Murray saw off Serbian Viktor Troicki with similar ease, 6-3, 6-2 Nadal on his way to beating Federico Delbonis of Argentina (Photo: Getty Images/Clive Brunskill) Later in the day, the Brazilian pair of Thomaz Bellucci and André Sá beat Andy and Jamie Murray to record a famous victory in their opening game in the men's doubles tournament Sá and Bellucci celebrate their first round victory (Photo: Getty Images/Clive Brunskill) Serena Williams progressed to the second round against Daria Gavrilova of Australia, but she and sister Venus were knocked out by the Czech Republic's Lucie Safarova and Barbora Strycova, losing 6-3, 6-4 Ledecky starts as she means to go on American Katie Ledecky sent out a stark warning to any would-be rivals today, as she set a new Olympic record in her 400m freestyle heat, shooting home in three minutes and 58 seconds, before lsmashing her own world record to finish in 3:56 46 as she took gold in the final Ledecky was already a Rio 2016 medalist, having been part of the USA team that took silver in the 4x100m freestyle relay on Saturday night Ledecky soared ahead of her opponents at the Olympic Aquatics Stadium today (Photo: Getty Images/Adam Pretty) Elsewhere, Great Britain's Adam Peaty delighted his grandma by taking gold in the men's 100m breaststroke final, setting a world record time of 57 13 seconds Adam Peaty of Great Britain on his way to gold (Photo: Julian Finney/Getty Images) Fantastic end to a dream debut for Skinner Catherine Skinner claimed gold in her first Olympic Games, beating New Zealand’s Natalie Rooney with her final shot to win the trap event 12-11 Despite missing with her first shot, Skinner came back to lead Australia to the top of the medal table on Sunday, at least temporarily Skinner came from behind to take gold at the Olympic Shooting Centre (Photo: Getty Images/Sam Greenwood) Singh does her country proud with heat victory Thirteen-year-old Nepal’s Guarika Singh, the Games’ youngest competitor, who was lucky to survive the devastating earthquake that hit her home country last year, won her 100m backstroke heat Gaurika already holds seven national swimming records in Nepal (Photo: Getty Images/Al Bello) Wu dives into record books as greatest Olympic diver China's Wu Minxia took gold along with partner Shi Tingmao in the women's synchronised 3m springboard, setting a new record as the individual with the most diving golds Wu has stood at the top of five Olympic podiums, and has won seven medals overall If all that wasn't enough, she is now the oldest woman to win an Olympic diving gold medal Wu (R), with partner Shi, has said she would like to continue to compete (Photo: Getty Images/Clive Rose) Kelmendi does Kosovo proud with first gold Majlinda Kelmendi secured her place in Olympic history, winning Kosovo’s first medal The judoka won the 52 kg category, beating Italian Odette Giuffrida in the final Rio 2016 is the first Olympic Games in which athletes from the Balkan nation have been allowed to compete under their own flag Kelmendi (in blue) represented Albania at London 2012 (Photo: Getty Images/Laurence Griffiths) Republic of Korea's unbeaten archery streak safe The Republic of Korea’s women took team gold for the eighth Olympic Games in a row, beating Russia 5-1 in the final Despite challenging winds in the Sambodromo, the trio of Ki Bobae, Choi Misun and Chang Hyejin shot superbly Korea's dominance continues on the Olympic stage, the country having won every competition since the event’s introduction in 1984 Left to right: South Korea's Chang Hyejin, Choi Misun and Ki Bobae (Photo: Getty Images/Paul Gilham) A bittersweet moment for Li in the weightlifting China's Li Yajun set a new Olympic record in the snatch in the women’s 53 kg competition, scoring 101, but failed to score in the clean and jerk, and was eliminated as a result Yajun Li during the women's 53kg weightlifting contest on day two (Photo by Lars Baron/Getty Images) Rio has a new samba queen Simone Biles, tipped to be one of the stars of Rio 2016, delighted Brazilian fans as she performed her floor routine to classic samba song, Mas Que Nada by Jorge Ben Jor, scoring the highest individual score Her USA team dominated on bars, on uneven bars and on vault and floor, scoring 185 238; nearly 10 points better than second-place China The samba-soundtracked routine was part of a virtuoso display (Photo: Getty Images/Ezra Shaw) Diver soars to bronze after video flop If you're a fan of sporting blooper videos, you might remember Australian Maddison Keeney Well, she's bounced back and today claimed a bronze along with Anabelle Smith in the synchronised three-metre springboard So who's laughing now ?    Australia's Anabelle Smith and Maddison Keeney show off their bronze medals (Photo: Getty Images/Clive Rose)