Leonie Fiebich, a late arrival after playing in Spain, played for the Liberty on Wednesday, helping them end a three-game losing streak with a win over the Mercury.
Behind another big performance from Sabrina Ionescu, New York is a win away from sweeping two-time defending champ Las Vegas out of the semifinals.
Veteran Courtney Vandersloot passed Sue Bird to become the WNBA's all-time playoff assist leader as the New York Liberty beat the Atlanta Dream 83-69 on Sunday in Game 1 of their first-round playoff series.