Jessica Eye (R) of the United States celebrates after winning the flyweight bout against Jessica-Rose Clark of Australia at the Ultimate Fighting Championship (UFC) in Singapore June 23, 2018. (Xinhua/Then Chih Wey)

Jessica Eye (R) of the United States fights with Jessica-Rose Clark of Australia during the flyweight bout at the Ultimate Fighting Championship (UFC) in Singapore June 23, 2018. (Xinhua/Then Chih Wey)

Jessica Eye (R) of the United States fights with Jessica-Rose Clark of Australia during the flyweight bout at the Ultimate Fighting Championship (UFC) in Singapore June 23, 2018. (Xinhua/Then Chih Wey)

Jessica Eye (R) of the United States fights with Jessica-Rose Clark of Australia during the flyweight bout at the Ultimate Fighting Championship (UFC) in Singapore June 23, 2018. (Xinhua/Then Chih Wey)

Jessica Eye of the United States jubilates after winning the flyweight bout against Jessica-Rose Clark of Australia during at the Ultimate Fighting Championship (UFC) in Singapore June 23, 2018. (Xinhua/Then Chih Wey)

Jessica Eye (R) of the United States fights with Jessica-Rose Clark of Australia during the flyweight bout at the Ultimate Fighting Championship (UFC) in Singapore June 23, 2018. (Xinhua/Then Chih Wey)

Jessica Eye (R) of the United States fights with Jessica-Rose Clark of Australia during the flyweight bout at the Ultimate Fighting Championship (UFC) in Singapore June 23, 2018. (Xinhua/Then Chih Wey)