Sabine Lisicki is a German

Germans

The Germans are a Germanic ethnic group native to Central Europe. The English term Germans has referred to the German-speaking population of the Holy Roman Empire since the Late Middle Ages....

 professional 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 of Polish

Poles

thumb|right|180px|The state flag of [[Poland]] as used by Polish government and diplomatic authoritiesThe Polish people, or Poles , are a nation indigenous to Poland. They are united by the Polish language, which belongs to the historical Lechitic subgroup of West Slavic languages of Central Europe...

 background.

Lisicki has won three WTA singles tournaments in her career (one in 2009 and two in 2011) and one doubles tournament (in 2011). She reached the semifinals of the 2011 Wimbledon Championships

2011 Wimbledon Championships

The 2011 Wimbledon Championships took place at the All England Lawn Tennis and Croquet Club in Wimbledon, London, England, from 20 June to 3 July 2011. It was the 125th edition of the championships, and the third Grand Slam tournament of the year. It was played on grass courts and was part of the...

 and also reached the quarterfinals of the 2009 Wimbledon Championships

2009 Wimbledon Championships

The 2009 Wimbledon Championships took place on the outdoor grass courts at the All England Lawn Tennis and Croquet Club in Wimbledon, London, from Monday 22 June through to Sunday 5 July 2009...

. She achieved her career high rank of World No. 17 on 12 September 2011. After struggling with injuries in 2010, Lisicki rebounded in 2011 and re-entered the top 100 of the world rankings.