WATCH: Puig reacts to her win over Kenin in Charleston second round

WATCH: Puig reacts to her win over Kenin in Charleston second round

The 25-year-old Puerto Rican faces No. 3-seeded Sabalenka next.

Monica Puig scored an upset win,  6-4, 6-4, over 20-year-old Sofia Kenin on Wednesday. The 25-year-old Puerto Rican, who won the 2016 Olympic gold medal, rallied from 5-3 in the second set to close out the match. Waiting for her in the round of 16 is No. 3-seeded Aryna Sabalenka, who survived a second-round scare against Kateryna Kozlova.