"It's given me some confidence but you know every tournament is different so I just try to build my confidence and try my best," she said.

Earlier in the day, Wang Yafan lost to American, Alison Riske, 7-6 (5), 2-6, 6-3 - having resumed their match which was halted after one set on Monday due to rain.

With the sun out, the Chinese player struck early, breaking Riske's serve in the first game and shooting to a 5-1 lead before going on to claim the second set.

However despite her frustration, Riske held on and quickly established control over the crucial third set.

Wang Yafan's serve in the sixth game went to deuce three times before one of her shots went wide, giving Riske the momentum she needed to clinch the crucial final games.

In another three set contest, Peng Shuai lost to Japan's Nao Hibino, 4-6, 7-6 (6), 6-3, with an apparent cramp costing the Chinese player the final set and ultimately the match.

Peng told Xinhua that the extreme physical demand of the two and a half hour match took a critical toll on her, and caused problems with her leg which struck in the final set.

"It was really a long match, I couldn't physically keep up with the opponent," Peng said.

"In the later stage of the match I could also feel the hot weather."

Despite leading the second set tiebreak, 4-1, Peng said that she felt physically unable to press the advantage and attack, eventually conceding the match as she was gripped by the pain in her leg.

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