Ash Barty beats Karolína Plíšková in tough three-setter, extends win streak over top-10 players

The bigger they are, the more likely Ash Barty will make them fall.

Facing the very best in the business — and beating them — has now become the Australian’s calling card.

She was at it again on Friday, looking perilously close to losing to the big-hitting world number nine Karolína Plíšková in the Tennis Grand Prix quarter-final in Stuttgart before finding a gutsy way to…