The Mubadala Citi Open will feature 18 of the top 30 tennis players in the world, all competing in Rock Creek Park.

For Rugiatu Sesay, the owner of After 12 Cafe, France Tiafoe’s success in tennis serves as inspiration as to where determination can take you.

24-year-old Frances Tiafoe defeated 22-time Grand Slam champion Rafael Nadal — the first American to do so since 2005 — in the US Open Monday.