Phelps beendet Karriere als 18-facher Olympiasieger

dapdUnited States Michael Phelps acknowledges the audience after he won the gold in the mens 100-meter butterfly swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Friday, Aug. 3, 2012. (Foto:Matt Slocum/A

EPAepa03330814 Chinas Shiwen Ye shows her gold medal after winning the Womens 200m Individual Medley during the London 2012 Olympic Games Swimming competition in London, Great Britain, 31 July 2012. EPA/Michael Kappeler

EPAepa03336247 Rebecca Soni of the USA celebrates after winning with a new world record time the Womens 200m Breaststroke Final the London 2012 Olympic Games Swimming competition, London, Britain, 02 August 2012. EPA/HANNIBAL

EPAepa03341216 Ranomi Kromowidjojo of the Netherlands (L) celebrates her gold medal in the womens 50m Freestyle during the London 2012 Olympic Games Swimming competition, London, Britain, 04 August 2012. EPA/BARBARA WALTON

EPAepa03325224 Dana Vollmer of the US reacts after winning the gold medal in world record time in the womens 100m Butterfly during the London 2012 Olympic Games Swimming competition, London, Britain, 29 July 2012. EPA/BARBARA WALTON

REUTERSAllison Schmitt of the U.S. gestures after setting an Olympic record to win the womens 200m freestyle final during the London 2012 Olympic Games at the Aquatics Centre July 31, 2012. Schmitt set a new time of 1 minute 53.61 seconds. REUTERS/Toby M

EPAepa03339190 Missy Franklin of the US celebrate after finishing first in the womens 200m Backstroke final during the London 2012 Olympic Games Swimming competition, London, Britain, 03 August 2012. the London 2012 Olympic Games Swimming competition, Lon

EPAepa03333664 Nathan Adrian of the US celebrates after winning gold in the mens 100m Freestyle Final during the Swimming competition held at the Aquatics Center during the London 2012 Olympic Games in London, England, 01 August 2012. EPA/BARBARA WALTON

dapdUnited States Matthew Grevers celebrates his gold medal win in the mens 100-meter backstroke swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Monday, July 30, 2012. (Foto:Daniel Ochoa De Olza/AP/dapd

REUTERSFrances Yannick Agnel is seen before the mens 200 metres freestyle event at the Mare Nostrum swimming meeting in Monaco June 9, 2012. REUTERS/Eric Gaillard (MONACO - Tags: SPORT SWIMMING)

REUTERSChinas Sun Yang, wearing his medals, arrives for the evening finals swimming session of the London 2012 Olympic Games at the Aquatic Centre August 1, 2012. REUTERS/Jorge Silva (BRITAIN - Tags: SPORT SWIMMING OLYMPICS)

EPAepa03323799 Ryan Lochte of the US prepares for the Mens 200m Freestyle Heats at Aquatics Centre, London 2012 Olympic Games, London, Britain, 29 July 2012. EPA/Hannibal

REUTERSMichael Phelps of the U.S. holds his 19th Olympic medal presented to him in the mens 4x200m freestyle relay victory ceremony during the London 2012 Olympic Games at the Aquatics Centre July 31, 2012. REUTERS/Michael Dalder (BRITAIN - Tags: SPORT