Zhang Yufei, Qin Haiyang win in national swimming championships
China's Zhang Yufei (L) celebrates with her coach after winning the women's 100m butterfly final during the Chinese National Swimming Championships in Jinan, China, December 10, 2023. /CFP
Olympic champion Zhang Yufei won the women's 100m butterfly in 56.85 seconds at the 2023 Chinese National Swimming Championships in Jinan, east China's Shandong Province, on Sunday.
Multiple world champion