Halep withdraws in St Petersburg due to knee injury
More knee trouble has prompted Simona Halep to pull out of the St Petersburg Ladies Trophy.
Simona Halep has withdrawn from the St Petersburg Ladies Trophy before her quarter-final match with Natalia Vikhlyantseva due to a knee injury.
The world number four rebounded from her shock first-round exit at the Australian Open by winning her opening match in Russia 6-4 7-6 (7-2) against Ana Konjuh in round two on Wednesday.
However, the Romanian – who was seeded top in St Petersburg – will play no further part, meaning Vikhlyantseva, the world number 115, receives a walkover into the semi-finals.
Confirming the news on its official Twitter account, the WTA posted: "@Simona_Halep has withdrawn from @Formula_TX due to a knee injury."
Halep stated that pain in her left knee had troubled her on court when addressing her shock first-round exit in Melbourne to Shelby Rogers last month.