Updated: 11/07/2017 04:45 PM | First Published: 11/07/2017 03:57 PM

German professional tennis player Sabine Lisicki

Sabine Lisicki is grinding her teeth as she makes a fist with her left hand.
Sabine Lisicki is a German professional tennis player. The 28-year-old athlete started her professional tennis career in 2006 and made her breakthrough in 2009 with reaching the quarterfinals of the Wimbledon Championships.

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