![Jan. 23, 2011 - Melbourne, Victoria, Australia - Andrea Petkovic (GER) celebrates her win at her fourth round match against Maria Sharapova (RUS) on day seven of the 2011 Australian Open at Jan. 23, 2011 - Melbourne, Victoria, Australia - Andrea Petkovic (GER) celebrates her win at her fourth round match against Maria Sharapova (RUS) on day seven of the 2011 Australian Open at](https://c8.alamy.com/comp/DK1JP0/jan-23-2011-melbourne-victoria-australia-andrea-petkovic-ger-celebrates-DK1JP0.jpg)
Jan. 23, 2011 - Melbourne, Victoria, Australia - Andrea Petkovic (GER) celebrates her win at her fourth round match against Maria Sharapova (RUS) on day seven of the 2011 Australian Open at
![Andrea Petkovic on Twitter: "First day of retirement, enjoying my sixpack while it lasts! https://t.co/io3IymUa5h" / Twitter Andrea Petkovic on Twitter: "First day of retirement, enjoying my sixpack while it lasts! https://t.co/io3IymUa5h" / Twitter](https://pbs.twimg.com/media/FbkvsuvX0AAq6N2.jpg)
Andrea Petkovic on Twitter: "First day of retirement, enjoying my sixpack while it lasts! https://t.co/io3IymUa5h" / Twitter
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