HONG KONG (AP) -- Eighth-seeded Alize Cornet lost to 105th-ranked Lusksika Kumkhum of Thailand at the rain-affected Hong Kong Open on Wednesday, while No. 4 Garbine Muguruza easily advanced to the quarterfinals.
After rain delayed play for four hours, Cornet came from 4-1 down in the final set to force a tiebreaker but lost 6-4, 4-6, 7-6 (5) against Kumkhum.
Muguruza had no such problems as the former French Open and Wimbledon champion dispatched Ana Bogdan of Romania 6-2, 6-1 to set up a quarterfinal against Kumkhum.
Also on Wednesday, the 102nd-ranked Dayana Yastremska of Ukraine beat Zheng SaiSai of China 6-3, 6-3 and Kristina Kucova of Slovakia ousted Bulgarian lucky loser Viktoriya Tomova 6-1, 6-0.