ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei with their winners trophies with runners up Sara Errani and Roberta Vinci of Italy after their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei with their trophies after victory against Sara Errani and Roberta Vinci of Italy during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Su-Wei Hsieh of Taipei and Shuai Peng of China hold their winners trophies after their three set victory against Sara Errani and Roberta Vinci of Italy in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Su-Wei Hsieh of Taipei and Shuai Peng of China hold their winners trophies after their three set victory against Sara Errani and Roberta Vinci of Italy in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei with their winners trophies after victory against Sara Errani and Roberta Vinci of Italy during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Su-Wei Hsieh of Taipei and Shuai Peng of China hold their winners trophies after their three set victory against Sara Errani and Roberta Vinci of Italy in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei celebrate victory against Sara Errani and Roberta Vinci of Italy during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Su-Wei Hsieh of Taipei and Shuai Peng of China celebrate match point against Sara Errani and Roberta Vinci of Italy in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei celebrate victory against Sara Errani and Roberta Vinci of Italy during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Su-Wei Hsieh of Taipei and Shuai Peng of China celebrate match point against Sara Errani and Roberta Vinci of Italy in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Su-Wei Hsieh of Taipei and Shuai Peng of China celebrate match point against Sara Errani and Roberta Vinci of Italy in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Su-Wei Hsieh of Taipei and Shuai Peng of China shake hands at the net after their three set victory against Sara Errani and Roberta Vinci of Italy in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Su-Wei Hsieh of Taipei and Shuai Peng of China celebrate match point against Sara Errani and Roberta Vinci of Italy in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Sara Errani and Roberta Vinci of Italy in action against Shuai Peng of China and Su-Wei Hsieh of Taipei during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Su-Wei Hsieh of Taipei and Shuai Peng of China in action against Sara Errani and Roberta Vinci of Italy in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Sara Errani and Roberta Vinci of Italy show their dejection against Su-Wei Hsieh of Taipei and Shuai Peng of China in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Sara Errani and Roberta Vinci of Italy in action against Shuai Peng of China and Su-Wei Hsieh of Taipei during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei in action against Sara Errani and Roberta Vinci of Italy during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Sara Errani and Roberta Vinci of Italy in action against Su-Wei Hsieh of Taipei and Shuai Peng of China in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Sara Errani and Roberta Vinci of Italy in action against Su-Wei Hsieh of Taipei and Shuai Peng of China in their doubles final match during day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Brunskill/Getty Images)

ROME, ITALY - MAY 19: Sara Errani and Roberta Vinci of Italy in action against Shuai Peng of China and Su-Wei Hsieh of Taipei during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei in action against Sara Errani and Roberta Vinci of Italy during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei in action against Sara Errani and Roberta Vinci of Italy during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Sara Errani and Roberta Vinci of Italy in action against Shuai Peng of China and Su-Wei Hsieh of Taipei during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Sara Errani and Roberta Vinci of Italy in action against Shuai Peng of China and Su-Wei Hsieh of Taipei during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei in action against Sara Errani and Roberta Vinci of Italy during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

ROME, ITALY - MAY 19: Shuai Peng of China and Su-Wei Hsieh of Taipei in action against Sara Errani and Roberta Vinci of Italy during their final match on day eight of the Internazionali BNL d'Italia 2013 at the Foro Italico Tennis Centre on May 19, 2013 in Rome, Italy. (Photo by Clive Mason/Getty Images)

Romania's Simona Halep returns the ball to Italy's Roberta Vinci during their match at the Italian Open tennis tournament in Rome, Thursday, May 16, 2013. (AP Photo/Riccardo De Luca)

Italy's Roberta Vinci returns the ball to Romania's Simona Halep during their match at the Italian Open tennis tournament in Rome, Thursday, May 16, 2013. (AP Photo/Riccardo De Luca)

Italy's Roberta Vinci returns the ball to Romania's Simona Halep during their match at the Italian Open tennis tournament in Rome, Thursday, May 16, 2013. (AP Photo/Riccardo De Luca)