"I've been practicing Wushu for 23 years, and this was actually the hardest time because of my injuries," said Sun, who also won for the men's Changquan in the 13th World Wushu Championships.

"Before the competition, I always want this (victory) moment to come earlier. But when I actually get here, I always feel that I'm that 100 percent ready. With all the pressure and struggles in my heart, this moment of winning was worth everything."

Speaking of his opponents, Sun said that players from South Korea and Indonesia were the strongest competitors.

"Still I believe in myself, and I just have to find my pace and do my best," he added.

Including Sun's medal, China has claimed the first gold in five consecutive Asian Games.

In 2002, it was Wang Haibin in fencing; in 2006, Zhu Qinan in men's shooting; in 2010, Yuan Xiaochao in Wushu; and in 2014, Guo Wenjun, Zhang Mengyuan and Zhou Qingyuan in women's shooting.