Sun Yingsha competes during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Coach Ma Lin (L) instructs Sun Yingsha during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Tang Yi)

Sun Yingsha competes during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Chen Cheng)

Sun Yingsha reacts during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Sun Yingsha competes during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Sun Yingsha (above) and Adriana Diaz compete during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Chen Cheng)

Sun Yingsha enters the court ahead of the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Sun Yingsha reacts during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Adriana Diaz competes during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Adriana Diaz competes during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Sun Yingsha serves during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Tang Yi)

Sun Yingsha reacts during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Sun Yingsha competes during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Chen Cheng)

Sun Yingsha enters the court ahead of the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Tang Yi)

Sun Yingsha (L) greets Adriana Diaz after the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Sun Yingsha serves during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Sun Yingsha competes during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Sun Yingsha gestures during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Tang Yi)

Coach Ma Lin (L) cheers for Sun Yingsha from the sideline during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Huang Wei)

Sun Yingsha competes during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Tang Yi)

Sun Yingsha competes during the women's singles round of 16 match between Sun Yingsha of China and Adriana Diaz of Puerto Rico at the WTT Champions Chongqing 2026 in southwest China's Chongqing, March 13, 2026. (Xinhua/Tang Yi)