Yu Mengyu of Singapore competes during the women's singles first round match against Mima Ito of Japan at the 2013 ITTF World Tour Qatar Open table tennis tournament in Doha, Qatar, Feb. 22, 2013. Yu lost the match 3-4. (Xinhua/Chen Shaojin)

Yu Mengyu of Singapore competes during the women's singles first round match against Mima Ito of Japan at the 2013 ITTF World Tour Qatar Open table tennis tournament in Doha, Qatar, Feb. 22, 2013. Yu lost the match 3-4. (Xinhua/Chen Shaojin)

Yu Mengyu of Singapore reacts during the women's singles first round match against Mima Ito of Japan at the 2013 ITTF World Tour Qatar Open table tennis tournament in Doha, Qatar, Feb. 22, 2013. Yu lost the match 3-4. (Xinhua/Chen Shaojin)

Yu Mengyu of Singapore competes during the women's singles first round match against Mima Ito of Japan at the 2013 ITTF World Tour Qatar Open table tennis tournament in Doha, Qatar, Feb. 22, 2013. Yu lost the match 3-4. (Xinhua/Chen Shaojin)