World No. 1 praises US Open champion's game and grit.
Former doubles No. 1 denies she used coercion on partner.
The two-time champion opens with Daria Gavrilova for the right to face Petra Kvitova in round two.
The Serb begins his quest for a first Cincinnati title in a tricky quarter of the draw.
World No. 1 blasts Rogers Cup schedule.
Knocking off his third straight Top 10 opponent was no shock to teenager.
Wimbledon champion backs proposed Davis Cup changes.
