Oscar Kreuzer was a male tennis

Tennis

Tennis is a sport usually played between two players or between two teams of two players each . Each player uses a racket that is strung to strike a hollow rubber ball covered with felt over a net into the opponent's court. Tennis is an Olympic sport and is played at all levels of society at all...

 player from Germany

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

.

He played at the 1908 Summer Olympics

1908 Summer Olympics

The 1908 Summer Olympics, officially the Games of the IV Olympiad, were an international multi-sport event which was held in 1908 in London, England, United Kingdom. These games were originally scheduled to be held in Rome. At the time they were the fifth modern Olympic games...

 and at the 1912 Summer Olympics

1912 Summer Olympics

The 1912 Summer Olympics, officially known as the Games of the V Olympiad, were an international multi-sport event held in Stockholm, Sweden, between 5 May and 27 July 1912. Twenty-eight nations and 2,407 competitors, including 48 women, competed in 102 events in 14 sports...

 in Stockholm

Stockholm

Stockholm is the capital and the largest city of Sweden and constitutes the most populated urban area in Scandinavia. Stockholm is the most populous city in Sweden, with a population of 851,155 in the municipality , 1.37 million in the urban area , and around 2.1 million in the metropolitan area...

, Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

 where he won a bronze medal in the men's singles tournament. In 1914, he and Otto Froitzheim

Otto Froitzheim

Otto Froitzheim was a German tennis player. At the 1908 Summer Olympics he won a silver medal in the men's singles tournament....

 were member of the German Davis Cup team, playing a Davis Cup semifinal in Pittsburgh against Australia. World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 was declared in the middle of the match, but those monitoring the telegraph did not want to disrupt the match. Froitzheim and Kreuzer sailed back to Germany as soon as possible, but their boat was sank off the coast of Gibraltar

Gibraltar

Gibraltar is a British overseas territory located on the southern end of the Iberian Peninsula at the entrance of the Mediterranean. A peninsula with an area of , it has a northern border with Andalusia, Spain. The Rock of Gibraltar is the major landmark of the region...

 and they spent the war years as prisoners of war of the British.