Top seed Halep out of St Petersburg
Top seed Simona Halep pulled out of the St Petersburg Trophy on Friday because of a persistent knee injury, propelling a Russian wild card into the semifinals.
World No.4 Halep, who enjoyed an openinground bye, beat Croatia’s Ana Konjuh in the second round in St Petersburg.
The 25-year-old Halep crashed out of last month’s Australian Open in the first round and again cited a sore knee.
Halep’s withdrawal saw Russia’s 19-year-old wild card Natalia Vikhlyantseva advance to the semifinals, where she will meet France’s Kristina Mladenovic.