Swimming – 17th FINA World Aquatics Championships – Women's 50m Freestyle Final – Budapest, Hungary – July 30, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Freestyle Final – Budapest, Hungary – July 30, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden and Ranomi Kromowidjojo of the Netherlands compete. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Freestyle Semifinals – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden waits for the start of the race. REUTERS/David Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Freestyle Semifinals – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden prepares for the start. REUTERS/David Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden and Ranomi Kromowidjojo of the Netherlands compete. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Freestyle Semifinals – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race and breaking the World Record. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Freestyle Semifinals – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race and breaking the World Record. REUTERS/Bernadett Szabo TPX IMAGES OF THE DAY 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Butterfly awarding ceremony – Budapest, Hungary – July 29, 2017 – (L-R) Ranomi Kromowidjojo (silver) of the Netherlands, Sarah Sjostrom (gold) of Sweden and Farida Osman (bronze) of Egypt pose with medals. REUTERS/Bernadett Szabo 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Medal Ceremony – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden is seen on the podium. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race. REUTERS/Bernadett Szabo 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Butterfly Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/David Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's Butterfly 50m Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden celebrates after winning the race. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Butterfly Final – Budapest, Hungary – July 29, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Butterfly Semifinal – Budapest, Hungary – July 28, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's Freestyle 100m Medal Ceremony – Budapest, Hungary – July 28, 2017 – Pernille Blume of Dennmark (bronze), Simone Manuel of the U.S. (gold) and Sarah Sjostrom of Sweden (silver) pose with medals. REUTERS/David Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's Freestyle 100m Medal Ceremony – Budapest, Hungary – July 28, 2017 – Pernille Blume of Dennmark (bronze), Simone Manuel of the U.S. (gold) and Sarah Sjostrom of Sweden (silver) pose with medals. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's Freestyle 100m final – Budapest, Hungary – July 28, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's Freestyle 100m final – Budapest, Hungary – July 28, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's Freestyle 100m final – Budapest, Hungary – July 28, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Butterfly Preliminary – Budapest, Hungary – July 28, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Butterfly Preliminary – Budapest, Hungary – July 28, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Butterfly Preliminary – Budapest, Hungary – July 28, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/David Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Butterfly Preliminary – Budapest, Hungary – July 28, 2017 – Sarah Sjostrom of Sweden before the race. REUTERS/David Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's 50m Butterfly Preliminary – Budapest, Hungary – July 28, 2017 – Sarah Sjostrom of Sweden before the race. REUTERS/David Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's Freestyle 100m semifinal – Budapest, Hungary – July 27, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's Freestyle 100m semifinal – Budapest, Hungary – July 27, 2017 – Sarah Sjostrom of Sweden competes. 

Swimming – 17th FINA World Aquatics Championships – Women's Freestyle 100m semifinal – Budapest, Hungary – July 27, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Stefan Wermuth 

Swimming - 17th FINA World Aquatics Championships - Women's 100m Freestyle preliminary - Budapest, Hungary - July 27, 2017 - Sarah Sjostrom of Sweden competes. REUTERS/Stefan Wermuth 

Swimming - 17th FINA World Aquatics Championships - Women's 100m Freestyle preliminary - Budapest, Hungary - July 27, 2017 - Sarah Sjostrom of Sweden. REUTERS/Stefan Wermuth 

Swimming - 17th FINA World Aquatics Championships - Women's 100m Freestyle preliminary - Budapest, Hungary - July 27, 2017 - Sarah Sjostrom of Sweden. REUTERS/Michael Dalder 

Swimming - 17th FINA World Aquatics Championships - Women's 100m Freestyle preliminary - Budapest, Hungary - July 27, 2017 - Sarah Sjostrom of Sweden. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly awarding ceremony – Budapest, Hungary – July 24, 2017 – (L-R) Emma McKeon (silver) of Australia, Sarah Sjostrom (gold) of Sweden and Kelsi Worrell (bronze) of U.S. pose with the medals. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly awarding ceremony – Budapest, Hungary – July 24, 2017 – (L-R) Emma McKeon (silver) of Australia, Sarah Sjostrom (gold) of Sweden and Kelsi Worrell (bronze) of U.S. pose with the medals. REUTERS/Bernadett Szabo 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly awarding ceremony – Budapest, Hungary – July 24, 2017 – (L-R) Emma McKeon (silver) of Australia, Sarah Sjostrom (gold) of Sweden and Kelsi Worrell (bronze) of U.S. pose with the medals. REUTERS/Laszlo Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly awarding ceremony – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden (gold) poses with the medal. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly awarding ceremony – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden (gold) poses with the medal. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly awarding ceremony – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom (gold) of Sweden celebrates on the podium. REUTERS/Laszlo Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly Final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly Final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly Final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Laszlo Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden reacts after coming first. REUTERS/Laszlo Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden reacts after coming first. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden reacts after coming first. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden reacts. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden reacts. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly final – Budapest, Hungary – July 24, 2017 – Sarah Sjostrom of Sweden is seen before the race. REUTERS/Michael Dalder 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly semifinal – Budapest, Hungary – July 23, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly semifinal – Budapest, Hungary – July 23, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Bernadett Szabo 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly semifinal – Budapest, Hungary – July 23, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Stefan Wermuth 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly semifinal – Budapest, Hungary – July 23, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Laszlo Balogh 

Swimming – 17th FINA World Aquatics Championships – Women's 100m Butterfly semifinal – Budapest, Hungary – July 23, 2017 – Sarah Sjostrom of Sweden competes. REUTERS/Stefan Wermuth