Madison Keys. Photo: Reuters

American tennis player Madison Keys beat Sloan Stevnes in the quarterfinals of the WTA tournament in Charleston – 7:6 (8:6), 4:6, 6:2.

In the semifinals she will meet Puerto Rican Monica Puig, who defeated Daniel Collins – 6:3, 6:2.

The other pair will meet Petra Martic (Serbia) and Caroline Wozniacki (Denmark).

The prize Fund of the tournament is 757 $ 900.