That's the best she's ever played against me. When she's on,...

That's the best she's ever played against me. When she's on, she hits the ball harder than anyone on the Tour and I think you could see today her serve has improved a lot too. She's always very dangerous... I think for me it was one match too much physically. I've done really well the last few weeks and months to keep playing as well as I have and I had to have a let down at some point.