David Kane catches up with the new WTA World No.1 Karolina Pliskova ahead of the Rogers Cup, where Pliskova will compete for the first time since ascending to the top spot after Wimbledon. 

Find out how Kaja found out she would be overtaking Angelique Kerber to become the 23rd woman to hold the No.1 ranking and how her Wimbledon disappointment fuels her fire as she kicks off a pressure-packed North American hard court season. 

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