Yuliya Efimova of Russia set a world record in the 50 metres breaststroke and Australia's Cate Campbell left her rivals for 50 freestyle gold trailing in qualifying at the world championships in Barcelona on Saturday.
Russia's Yuliya Efimova followed up Friday's world championship gold medal in the women's 200 metres breaststroke by setting a world record in the 50 metres version of the event in her heat on Saturday.
Lithuanian teenager Ruta Meilutyte won the 100 metres breaststroke gold at the world championships in Barcelona on Tuesday, with a time just outside the world record she set in Monday's qualifying.
Russia's Yulia Efimova faces a life ban after the breaststroke specialist tested positive for meldonium, with her temporary suspension confirmed by the All-Russian Swimming Federation (ARSF) on Thursday.
Sweden's Sarah Sjostrom set a world record for the women's 100 metres butterfly at the world swimming championships on Monday.
American teenager Katie Ledecky bettered her own 1500 metres freestyle world record with a superb display during the morning heats at the world championships on Monday.
Olympic champion Ruta Meilutyte of Lithuania set a European and world championship record in the heats for the 100 metres breaststroke in Barcelona on Monday.
Swimming's world body FINA promised on Wednesday to investigate "as a matter of utmost urgency" new allegations of Russian doping if they could be substantiated by evidence.
American swimmers smashed records and grabbed gold at the world championships on Friday, with sprint king Caeleb Dressel taking down Michael Phelps' 100 metres butterfly world record and teenager Regan Smith lowering the women's 200 backstroke mark.
At the medal ceremony, Scott shook hands with fellow bronze medallist Martin Malyutin of Russia, who finished with the same time as the Briton, but then completely cold shouldered Sun, refusing to make eye contact and not offering a handshake.
Svetlana Kolesnichenko, the new standard bearer for artistic aquatics, added another European Championships gold to her huge collection of international medals when she took the synchronised swimming solo technical title on Monday.
Britain's James Guy held off a host of Olympic champions to win his first world title, the men's 200m freestyle, at the world championships on Tuesday.
Australia set a world record of 7:41.50 en route to winning the gold medal in the women's 4x200 freestyle relay at the world championships on Thursday.
A summary of sports events and sports persons, who made news on Wednesday.