Henan's Sun Tiantian serves during the women's singles match against Zhejiang's Han Xinyun at the 11th Chinese National Games in Jinan, east China's Shandong Province, Oct. 21, 2009. Sun lost 0-2.

Chinese tennis aces did not fell prey to any upset at the 11th Chinese National Games, with former Olympic champion Sun Tiantian and China's former male number one Sun Peng both advancing in the doubles events on Tuesday.

After teaming up with Yang Yifan to beat a pair from Hong Kong, China for the second round in the mixed doubles, Sun Tiantian, 28, said she will not retire after the elite national meet.

"The career for a tennis player is short. If I feel the training, competition and travel are far beyond my ability, I will have no choice but to retire, but not today," the Athens Olympic women's doubles gold medalist said after the match.

Henan's Sun Tiantian returns the ball during the women's singles match against Zhejiang's Han Xinyun at the 11th Chinese National Games in Jinan, east China's Shandong Province, Oct. 21, 2009.

Ranked 82nd currently in the WTA doubles standings, Sun claimed women's doubles title with Li Ting in Athens five years ago. Her partner Li retired in 2007.

She told Xinhua if the country needs her, she would compete in the Asian Games next year. "For myself, of course I hope to participate."

Sun Peng, defending champion of the singles event, opened the men's doubles event with a victory with teammate Liang Shuangqiang by defeating Henan pair Li Yang and Fenghe 2-0.

Sun, representing Tianjin, said this competition was more difficult than the last fight four years ago because a lot of young players are growing stronger.

Zhejiang's Han Xinyun returns the ball during the women's singles match against Henan's Sun Tiantian at the 11th Chinese National Games in Jinan, east China's Shandong Province, Oct. 21, 2009. Han won 2-0.

There is also win for Olympic hopeful Han Xinyun from Zhejiang, who won two games in women's doubles and mixed doubles within one day.

The tennis tournament is slated for October 19 to 27. A total of 129 players will compete in the events.

Editor: Guo Changdong Source: Xinhua