WTA Cincinnati: Quarter-Final Predictions

Angelique Kerber Serena Williams v Angelique Kerber Serena Williams has looked far from her best in Cincinnati so far.  She laboured to a 6-4 6-3 victory over Urszula Radwanska, recovering from deficits in both sets.  It must have been so demoralising for Radwanska to see Serena playing miles below her best, but still comfortably winning. …