Rain affects play at Edgbaston
Play was badly affected due to persistent rain at the AEGON Classic at Edgbaston as the quarter-finals were left unfinished.
Zheng took the opening set 6-3, but Vinci responded impressively in the second set before rain intervened.
But Misaki Doi did manage to wrap up victory before the downpour ended play as she secured a 6-4 7-5 win over Stephanie Foretz Gacon of France in the third round.
Doi will next take on Jelena Jankovic in the quarter-finals, on the same side of the draw as Vinci and Zheng.
Organisers at Edgbaston will be anxious for an improved forecast on Saturday.