How long can she stay in the zone, and keep weariness at bay?

The 6-foot Kazakh has one of the game’s best serves, which comes in handy as a way to neutralize Iga’s biggest weapon, her return.

Three-time defending Qatar Open champion Iga Swiatek scrapped her way past Czech youngster Linda Noskova on Wednesday to set up a quarter-final with last year's runner-up Elena Rybakina. The five-time ...

Elena Rybakina (No. 7 ranking) will take on Iga Swiatek (No. 2) in the quarterfinals at the WTA Doha, Qatar on Thursday, ...