(CNN)As a child, people used to make fun of Duckhee Lee, telling him he should not be playing tennis.
Duckhee Lee: South Korean becomes first deaf player to win ATP Tour match
On Monday the South Korean proved the doubters wrong by becoming the first deaf player to win a match in the main draw of the ATP Tour.
The 21-year-old, ranked 212 in the world, saw off Swiss world No. 120 Henri Laaksonen 7-6 (7-4) 6-1 at the Winston-Salem Open in North Carolina.
"People made fun of me for my disability. They told me I shouldn't be playing," Lee told reporters. "It was definitely difficult, but my friends and family helped me get through. I wanted to show everyone that I could do