Plenette Pierson scored 20 points to help the New York Liberty snap a three-game losing streak and hamper the Washington Mystics' playoff seeding with a 73-61 victory Saturday night.
A 16-point, seven-rebound performance by Emma Meesseman helped the Mystics to a playoff-clinching win over the Sun, coach Mike Thibault's former team.
Sylvia Fowles had 21 points and 16 rebounds and Elena Delle Donne scored 18 to lift the Chicago Sky past the Washington Mystics 72-69 on Wednesday.
Mystics center Kia Vaughn has been suspended one game for an elbow in Sunday's loss at the Connecticut Sun.
The win puts the Mystics back at .500 with momentum.