Divers train before the competitions at the 32 nd LEN European Swimming Championships 2014 in Berlin, Germany, 23 August 2014.

Iira Laatunen of Finland competes at the women's diving 3m springboard preliminary at the 32nd LEN European Swimming Championships 2014 at the Velodrom in Berlin, Germany, 24 August 2014.

Skaters compete during a mass start men competition at the speedskating World Cup in Berlin, March 11, 2012

Rowing, World Championship 2011, Bled, Slovenia.

Yannick Lebherz of Germany competes in the men's 400m medley preliminary at the 32nd LEN European Swimming Championships 2014 at the Velodrom in Berlin, Germany, 24 August 2014. Photo: Maja Hitij/dpa

Fans watch the World Cup match between Germany and Ghana at the fan mile in front of the Brandenburg Gate in Berlin, Germany, 21 June 2014.

Iker Romero Fernandez (r.) of Berlin fights with Hamburgs Marcin Lijewski (m.) and Hamburgs Bertrand Gille during the Toyota Handball Bundesliga match between Fuechse Berlin and HSV Hamburg at Max Schmeling hall on Sept. 11, 2011.

Spain perform during the Women's Team Free Synchronised Swimming Final at Europa-Sportpark on August 17, 2014 in Berlin, Germany.

A cyclist performs at the 15 th Freestyle BMX Festival Highway to Hill at Mellowpark in Berlin, Germany, 31 May 2014. BMX riders compete in the disciplines Flatland, Vert (mini ramp), Street, Park and Trails.

Swimming, World Cup, 200 Meter Backstroke, Men, (23.10.11), Berlin: Michael Phelps.

Schalke players celebrate the 2:1 score during the German Bundesliga soccer match between FC Schalke 04 and Hertha BSC in Gelsenkirchen, Germany, 17 October 2015.

Dortmund's Robert Lewandowski (l.) and Bayern Munich's Bastian Schweinsteiger fight for the ball during the German cup DFB Pokal final football match Borussia Dortmund vs Bayern Munich at the Olympiastadion in Berlin on May 12, 2012. Dortmund defeated Munich 5-2.

Borussia Dortmund's Players celebrate after winning the German cup DFB Pokal final football match against Bayern Munich at the Olympiastadion in Berlin on May 12, 2012. Dortmund defeated Munich 5-2.

Nuernbergs Goalkeeper Raphael Schaefer (back) celebrates with his Team colleague Philipp Wollscheid during the German Bundesliga match Hertha BSC vs 1. FC Nuernberg, at the Olympiastadion in Berlin on Aug. 6, 2011.

Bayern Munich's Fans during the German cup 'DFB Pokal' final football match Borussia Dortmund vs Bayern Munich at the Olympiastadion in Berlin on May 12, 2012. Dortmund defeated Munich 5-2.

Moenchengladbach supporters cheer at the German Bundesliga soccer match between Borussia Moenchengladbach and 1. FC Koeln in Borussia Park in Moenchengladbach, Germany, 14 February 2015.

German Bundesliga soccer club Hertha BSC football fans display their choreography in the eastern part of the stands of the Olympic Stadium in Berlin, Germany prior to the team's match against 1. FC Nuernberg on Saturday, August 6, 2011.

Rowing, World championship 2011, (02.09.11), Bled, Slovenia: Morning training.

Rowing, World championship 2011, (02.09.11), Bled, Slovenia.

Switzerland perform during the Women's Team Free Synchronised Swimming Final at Europa-Sportpark on August 17, 2014 in Berlin, Germany.

Runners compete during the women's 3000 meters steeple chase at the ISTAF athletics meeting in Berlin, Germany, Sept. 2, 2012.

Albas Dashaun Wood (l.) is challenged by Artland Dragons Kristaps Valters (m.) and Artland Dragons Anthony King during the Basketball Bundesliga match between Alba Berlin and Artland Dragons Quakenbrueck in O2 Arena in Berlin on October 3, 2012.

Germany' s Mario Goetze jubilates after scoring the 1-0 goal during the international friendly soccer match between Germany and the USA in Cologne, Germany, 10 June 2015.