2018 European Championships - 400m Individual Medley Final - Tollcross International Swimming Centre, Glasgow, Britain - August 9, 2018 - David Verraszto of Hungary reacts after the race. REUTERS/Stefan Wermuth

2018 European Championships - 400m Individual Medley Final - Tollcross International Swimming Centre, Glasgow, Britain - August 9, 2018 - David Verraszto of Hungary reacts after the race. REUTERS/Stefan Wermuth

2018 European Championships - 400m Individual Medley Final - Tollcross International Swimming Centre, Glasgow, Britain - August 9, 2018 - David Verraszto of Hungary reacts after the race. REUTERS/Stefan Wermuth

2018 European Championships - 400m Individual Medley Final - Tollcross International Swimming Centre, Glasgow, Britain - August 9, 2018 - David Verraszto of Hungary reacts after the race. REUTERS/Stefan Wermuth

Swimming – 17th FINA World Aquatics Championships – Men's 400m Individual Medley awarding ceremony – Budapest, Hungary – July 30, 2017 – David Verraszto (silver) of Hungary poses with the medal. REUTERS/Bernadett Szabo

Swimming – 17th FINA World Aquatics Championships – Men's 400m Individual Medley awarding ceremony – Budapest, Hungary – July 30, 2017 – (L-R) David Verraszto (silver) of Hungary, Chase Kalisz (gold) of the U.S. and Daiya Seto (bronze) of Japan pose with medals. REUTERS/David Balogh

Swimming – 17th FINA World Aquatics Championships – Men's 400m Individual Medley awarding ceremony – Budapest, Hungary – July 30, 2017 – (L-R) David Verraszto (silver) of Hungary, Chase Kalisz (gold) of the U.S. and Daiya Seto (bronze) of Japan pose with medals. REUTERS/Bernadett Szabo

Swimming – 17th FINA World Aquatics Championships – Men's 400m Individual Medley Final – Budapest, Hungary – July 30, 2017 – David Verraszto of Hungary competes. REUTERS/David Balogh

Swimming – 17th FINA World Aquatics Championships – Men's 400m Individual Medley preliminary – Budapest, Hungary – July 30, 2017 - David Verraszto of Hungary competes. REUTERS/Michael Dalder

Swimming – 17th FINA World Aquatics Championships – Men's 400m Individual Medley preliminary – Budapest, Hungary – July 30, 2017 - David Verraszto of Hungary competes. REUTERS/David Balogh

Swimming – 17th FINA World Aquatics Championships – Men's 400m Individual Medley preliminary – Budapest, Hungary – July 30, 2017 - David Verraszto of Hungary competes. REUTERS/David Balogh

Swimming- European Aquatics Championships- Men's 400m medley final - London, Britain, 22/5/2016. Hungary's David Verraszto (C) celebrates victory with second placed Richard Nagy of Sloavakia and third placed Federico Turrini of Italy. REUTERS/Tony O'Brien

Swimming- European Aquatics Championships- Men's 400m medlay final - London, Britain, 22/5/2016. Hungary's David Verraszto (R) and Slovakia's Richard Nagy react after competing. REUTERS/Tony O'Brien

Swimming- European Aquatics Championships- Men's 400m medlay final - London, Britain, 22/5/2016. Hungary's David Verraszto in action. REUTERS/Tony O'Brien

Swimming- European Aquatics Championships- Men's 400m medlay final - London, Britain, 22/5/2016. Hungary's David Verraszto in action. REUTERS/Andrew Boyers

Swimming- European Aquatics Championships- Men's 400m medlay final - London, Britain, 22/5/2016. Hungary's David Verraszto in action. REUTERS/Andrew Boyers

Swimming- European Aquatics Championships- Men's 400m medlay final - London, Britain, 22/5/2016. Hungary's David Verraszto in action. REUTERS/Tony O'Brien

David Verraszto of Hungary poses with his silver medal after the men's 400m individual medley final at the Aquatics World Championships in Kazan, Russia, August 9, 2015. REUTERS/Stefan Wermuth

Silver medallist David Verraszto of Hungary, gold medallist Japan's Daiya Seto and bronze medallist Chase Kalisz of the US celebrate after winning the men's 400m individual medley final at the Aquatics World Championships in Kazan, Russia, August 9, 2015. REUTERS/Michael Dalder

David Verraszto of Hungary competes to place second in the men's 400m individual medley final at the Aquatics World Championships in Kazan, Russia, August 9, 2015. REUTERS/Stefan Wermuth

Winner David Verraszto of Hungary poses after the men's 400m individual medley final at the European Swimming Championships in Berlin August 24, 2014. REUTERS/Michael Dalder (GERMANY - Tags: SPORT SWIMMING)

Winner David Verraszto of Hungary (C), second placed Roberto Pavoni of Britain (R) and third placed Federico Turrini of Italy pose after the men's 400m individual medley final at the European Swimming Championships in Berlin August 24, 2014. REUTERS/Michael Dalder (GERMANY - Tags: SPORT SWIMMING)

David Verraszto of Hungary reacts aftert winning the men's 400 metres medley final at the European Swimming Championships in Berlin August 24, 2014. REUTERS/Michael Dalder (GERMANY - Tags: SPORT SWIMMING)

David Verraszto (R) of Hungary reacts aftert winning the men's 400 metres medley final at the European Swimming Championships in Berlin August 24, 2014. REUTERS/Michael Dalder (GERMANY - Tags: SPORT SWIMMING)

David Verraszto of Hungary swims to win in the men's 400 metres medley final at the European Swimming Championships in Berlin August 24, 2014. REUTERS/Michael Dalder (GERMANY - Tags: SPORT SWIMMING TPX IMAGES OF THE DAY)

David Verraszto of Hungary swims in men's 400m medley heats at the European Swimming Championships in Berlin August 24, 2014. REUTERS/Michael Dalder (GERMANY - Tags: SPORT SWIMMING)

David Verraszto of Hungary swims in men's 400m medley heats at the European Swimming Championships in Berlin August 24, 2014. REUTERS/Michael Dalder (GERMANY - Tags: SPORT SWIMMING)

Gold medallist Daiya Seto (C) of Japan poses next to silver medallist Laszlo Cseh (L) of Hungary and his compatriot and bronze medallist David Verraszto during the award ceremony for the men's 400m individual medley final during the FINA World Swimming Championships in Istanbul December 13, 2012. REUTERS/Murad Sezer (TURKEY - Tags: SPORT SWIMMING)

David Verraszto of Hungary competes in the men's 400m individual medley heats during the FINA World Swimming Championships in Istanbul December 13, 2012. REUTERS/Murad Sezer (TURKEY - Tags: SPORT SWIMMING)

(From R to L) Australia's Daniel Tranter, Brazil's Thiago Pereira, Ryan Lochte of the U.S., Germany's Markus Deibler and Hungary's David Verraszto swim in the men's 200m individual medley heats during the London 2012 Olympic Games at the Aquatics Centre August 1, 2012. REUTERS/Michael Dalder (BRITAIN - Tags: SPORT SWIMMING OLYMPICS)

(From L to R) David Verraszto of Hungary, Kosuke Hagino of Japan and Yang Zhixian of China are seen underwater as they swim during the men's 400m individual medley heats at the London 2012 Olympic Games at the Aquatics Centre July 28, 2012. REUTERS/Michael Dalder (BRITAIN - Tags: SPORT SWIMMING)

Evelyn Verraszto of Hungary swims during a training session at the Aquatics Centre before the start of the London 2012 Olympic Games in London July 25, 2012. REUTERS/David Gray (BRITAIN - Tags: SPORT OLYMPICS SWIMMING)

Evelyn Verraszto of Hungary is seen with earrings in the shape of the Olympic rings during a training session at the Aquatics Centre before the start of the London 2012 Olympic Games in London July 25, 2012. REUTERS/David Gray (BRITAIN - Tags: SPORT OLYMPICS SWIMMING)

Evelyn Verraszto of Hungary is seen with earrings in the shape of the Olympic rings during a training session at the Aquatics Centre before the start of the London 2012 Olympic Games in London July 25, 2012. REUTERS/David Gray (BRITAIN - Tags: SPORT OLYMPICS SWIMMING)

Laszlo Cseh (R) of Hungary celebrates with compatriot David Verraszto after the men's 400m individual medley final during the 2012 European Swimming Championship in Debrecen May 27, 2012. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT SWIMMING)

Laszlo Cseh (C) of Hungary celebrates with compatriot David Verraszto (L) and Ioannis Drymonakos of Greece after the men's 400m individual medley final during the 2012 European Swimming Championship in Debrecen May 27, 2012. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary reacts after the men's 400 m individual medley during the 2012 European Swimming Championships in Debrecen May 27, 2012. REUTERS/Bernadett Szabo (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary competes in the men's 400m individual medley heats during the 2012 European Swimming Championships in Debrecen May 27, 2012. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary competes at the men's 400 m individual medley during the 2012 European Swimming Championships in Debrecen May 27, 2012. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary competes in the men's 400m individual medley heats during the 2012 European Swimming Championship in Debrecen May 27, 2012. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto from Hungary, compatriot Laszlo Cseh and Gal Nevo from Israel (L-R) present their medals in the men's 400 metres individual medley final at the European Swimming Championships in Budapest August 15, 2010. Laszlo Cseh from Hungary won the competition ahead of compatriot David Verraszto on second place and Gal Nevo from Israel on third place. REUTERS/Wolfgang Rattay (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary presents his silver medal in the men's 400m individual medley final at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT)

Laszlo Cseh (R) and David Verraszto of Hungary present their gold and silver medals in the men's 400m individual medley final at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT)

David Verraszto of Hungary competes in the men's 400m individual medley final at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Wolfgang Rattay (HUNGARY - Tags: SPORT)

David Verraszto of Hungary reacts after the men's 400m individual medley final at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Wolfgang Rattay (HUNGARY - Tags: SPORT)

David Verraszto from Hungary celebrates after the men's 400 metres individual medley final at the European Swimming Championships in Budapest August 15, 2010. Laszlo Cseh from Hungary won the competition ahead of compatriot David Verraszto on second place and Gal Nevo from Israel on third place. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT SWIMMING)

Laszlo Cseh from Hungary and compatriot David Verraszto (R) celebrate after the men's 400 metres individual medley final at the European Swimming Championships in Budapest August 15, 2010. Laszlo Cseh from Hungary won the competition ahead of compatriot David Verraszto on second place and Gal Nevo from Israel on third place. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT SWIMMING)

Laszlo Cseh from Hungary celebrates after winning the men's 400 metres individual medley final at the European Swimming Championships in Budapest August 15, 2010. Laszlo Cseh from Hungary won the competition ahead of compatriot David Verraszto on second place and Gal Nevo from Israel on third place. REUTERS/Peter Andrews (HUNGARY - Tags: SPORT SWIMMING)

Laszlo Cseh from Hungary celebrates after winning the men's 400 metres individual medley final at the European Swimming Championships in Budapest August 15, 2010. Laszlo Cseh from Hungary won the competition ahead of compatriot David Verraszto on second place and Gal Nevo from Israel on third place. REUTERS/Peter Andrews (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary reacts after competing in men's 400m individual medley heats at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT SWIMMING)

Laszlo Cseh (L) of Hungary and his compatriot David Verraszto of Hungary react after competing in men's 400m individual medley heats at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Wolfgang Rattay (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary reacts after competing in men's 400m individual medley heats at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Wolfgang Rattay (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary reacts after competing in men's 400m individual medley heats at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Wolfgang Rattay (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary reacts after competing in men's 400m individual medley heats at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Wolfgang Rattay (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary competes in men's 400m individual medley heats at the European Swimming Championships in Budapest August 15, 2010. REUTERS/Wolfgang Rattay (HUNGARY - Tags: SPORT SWIMMING)

David Verraszto of Hungary swims in the men's 400m individual medley heats during the European Swimming Championships in Eindhoven March 24, 2008. REUTERS/Robin Van Lonkhuijsen (NETHERLANDS)

David Verraszto of Hungary swims in the men's 400m individual medley heats during the European Swimming Championships in Eindhoven March 24, 2008. REUTERS/Robin Van Lonkhuijsen (NETHERLANDS)

David Verraszto of Hungary competes in the men's 1,500m freestyle swimming heat at the World Aquatics Championship in Melbourne March 31, 2007. REUTERS/David Gray (AUSTRALIA)

David Verraszto of Hungary gestures after competing in the men's 200m butterfly swimming heat at the World Aquatics Championship in Melbourne March 27, 2007. REUTERS/David Gray (AUSTRALIA)

David Verraszto of Hungary competes in the men's 200m butterfly swimming heat at the World Aquatics Championship in Melbourne March 27, 2007. REUTERS/David Gray (AUSTRALIA)