Chung Hyeon has become the first South Korean to win an Association of Tennis Professionals(ATP) Tour title in more than 14 years.
The 21-year-old tennis player defeated top-seeded Andrey Rublev of Russia and clinched the inaugural Next Generation ATP Finals in Milan, Italy, on Saturday. 
The 37th-ranked Lee pocketed the 390-thousand U.S. dollars winner's check. 
It is the first time for a South Korean to win an ATP Tour singles title since Lee Hyung-taik in January 2003.