Cincinnati Aug 16 (IANS) Defending champion and seventh seed Spain s Garbiñe Muguruza lost to Ukrainian Lesia Tsurenko at the Cincinnati Masters tennis tournament here.
Tsurenko ranked 44th overturned a first set deficit to send Muguruza ranked 9th packing 2-6 6-4 6-4 in two hours on Wednesday reports Efe.
With this victory the Ukrainian progressed to the round of 16 where she will face Russia s Ekaterina Makarova who defeated France s Alize Cornet in straight sets 6-2 6-0.
In other matches world number two Denmark s Caroline Wozniacki retired with a left knee injury during her second round match against the Netherlands Kiki Bertens after the latter won the first set 6-4.
Earlier the American third-seed Sloane Stephens finalist in Montreal last week easily defeated Germany s Tatjana Maria 6-3 6-2 and will face Belgium s Elise Mertens.
Mertens seeded 14th came back from a set down to beat Sweden s Rebecca Peterson 3-6 6-2 7-6 (1).
Belarus Aryna Sabalenka eliminated Czech ninth-seed Karolina Pliskova 2-6 6-3 7-5 and will now face France s Caroline Garcia seeded sixth in the tournament.
Prize money worth $2.9 million is distributed in the women s section of the Cincinnati Masters according to the WTA webpage.

--IANS gau/sed