Li Na, Nadal advance in Rome Masters Li Na of China returns the ball during the third round of women's singles match against Chanelle ...

Li Na, Nadal advance in Rome Masters

Li Na of China returns the ball during the third round of women's singles match against Chanelle Scheepers of South Africa at the Rome Masters tennis tournament in Rome, Italy, May 17, 2012. Li Na won 2-0 to enter the quarterfinals. (Xinhua/Wang Qingqin)

Li Na of China returns the ball during the third round of women's singles match against Chanelle Scheepers of South Africa at the Rome Masters tennis tournament in Rome, Italy, May 17, 2012. Li Na won 2-0 to enter the quarterfinals. (Xinhua/Wang Qingqin)

Rafael Nadal of Spain serves during the third round of men's singles match against compatriot Marcel Granollers at the Rome Masters tennis tournament in Rome, Italy, May 17, 2012. Nadal won 2-0 to enter the quarterfinals. (Xinhua/Wang Qingqin)

Rafael Nadal of Spain returns the ball during the third round of men's singles match against compatriot Marcel Granollers at the Rome Masters tennis tournament in Rome, Italy, May 17, 2012. Nadal won 2-0 to enter the quarterfinals. (Xinhua/Wang Qingqin)

Rafael Nadal of Spain returns the ball during the third round of men's singles match against compatriot Marcel Granollers at the Rome Masters tennis tournament in Rome, Italy, May 17, 2012. Nadal won 2-0 to enter the quarterfinals. (Xinhua/Wang Qingqin)

Both Li Na and Rafael Nadal entered the quarterfinals in Rome Masters on May 17.