WASHINGTON (Interstat) — Shakira Austin scored 17 points and Kiki Iriafen had 15 points and 11 rebounds as the Washington Mystics defeated the Chicago Sky 90-72 on Tuesday night. Iriafen recorded her fourth double-double of the season. Michaela Onyenwere added 13 points and seven rebounds for Washington, which outrebounded Chicago 46-29 and collected 17 offensive rebounds. Kamilla Cardoso led Chicago with 12 points, 13 rebounds, five assists and six blocks. Sydney Taylor scored 15 points and Skylar Diggins added 14 for the Sky. The Mystics led 25-24 after the first quarter and 47-40 at halftime. Washington outscored Chicago 27-18 in the third quarter to take a 74-58 lead. The Mystics shot 20 of 32 from the free-throw line to Chicago’s 10 of 16. Attendance at CareFirst Arena was 4,200. Chicago fell to 3-6 while Washington improved to 4-4.