Russia's national team head coaches Alexander Nemtyrev and Sergey Tarasov, right, attend the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962701
Russia's National and Non-Olympic Sports Committee Chairman Gennady Alyoshin applauds during the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962699
Hungary's Katinka Hosszu competes during the women's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962685
Japan's Seto Daiya reacts after winning the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962681
Japan's Seto Daiya competes during the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962679
Japan's Seto Daiya competes during the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962680
Japan's Seto Daiya competes during the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962676
Japan's Seto Daiya competes during the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962674
Japan's Seto Daiya competes during the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962673
Japan's Seto Daiya competes during the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962672
Jay Litherland, of the United States, competes during the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962670
Japan's Seto Daiya competes during the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962665
Japan's Seto Daiya competes during the men's 400m individual medley final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962663
Bronze medalist Russia's Yuliya Efimova shows off her medal during the awarding ceremony after the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962653
Gold medalist Lilly King, of the United States, and bronze medalist Russia's Yuliya Efimova, right, pose for a photo during the awarding ceremony after the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962651
From left, silver medalist Italy's Benedetta Pilato, gold medalist Lilly King, of the United States, and bronze medalist Russia's Yuliya Efimova pose for a photo during the awarding ceremony after the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962650
Simone Manuel, of the United States, reacts after winning the women's 50m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962642
Simone Manuel, of the United States, competes during the women's 50m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962638
Swimmers compete during the women's 50m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962634
Bronze medalist Russia's Kliment Kolesnikov shows off his medal during the awarding ceremony after the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962629
Germany's Florian Wellbrock reacts after winning the men's 1500m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962615
Germany's Florian Wellbrock reacts after winning the men's 1500m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962614
Germany's Florian Wellbrock reacts after winning the men's 1500m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962609
Germany's Florian Wellbrock reacts after winning the men's 1500m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962608
Ukraine's Mykhailo Romanchuk competes during the men's 1500m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962602
Italy's Gregorio Paltrinieri competes during the men's 1500m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962597
Italy's Gregorio Paltrinieri competes during the men's 1500m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962598
Italy's Gregorio Paltrinieri competes during the men's 1500m freestyle final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962596
Russia's Yuliya Efimova, left, and Lilly King, of the United States, smile after the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962588
Lilly King, of the United States, waves after the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962586
Russia's Yuliya Efimova, right, and Lilly King, of the United States, shake hands after the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962585
Russia's Yuliya Efimova, left, and Lilly King, of the United States, prepare for the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962580
Russia's Yuliya Efimova and Lilly King, of the United States, compete during the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962579
Russia's Yuliya Efimova prepares for the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962576
Lilly King, of the United States, waves before the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962568
Russia's Yuliya Efimova waves before the women's 50m breaststroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962564
South Africa's Zane Waddell reacts after winning the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962547
Russia's team members cheer before the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962542
South Africa's Zane Waddell reacts after winning the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962541
South Africa's Zane Waddell reacts after winning the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962540
Russia's Evgeny Rylov reacts after the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962532
South Africa's Zane Waddell reacts after winning the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962531
South Africa's Zane Waddell reacts after winning the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962519
Russia's Kliment Kolesnikov dives before the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962515
Russia's Kliment Kolesnikov, left, competes during the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962510
Russia's Kliment Kolesnikov, centre, competes during the men's 50m backstroke final competition at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962509
Medalists of the men's 50m backstroke competition pose for the media at the World Swimming Championships, in Gwangju, South Korea. From left to right: Evgeny Rylov (Russia) - silver medal, Zane Waddell (South Africa) - gold medal, Kliment Kolesnikov (Russia) - bronze medal.28.07.2019#5962224
Russia's Yuliya Efimova stands during the women's 50m breaststroke final at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962212
Russia's Yuliya Efimova swims during the women's 50m breaststroke final at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962210
Russia's Yuliya Efimova reacts after the women's 100m breaststroke final at the World Swimming Championships, in Gwangju, South Korea.28.07.2019#5962201