With their 21st meeting tomorrow, Ben and Courtney take a stroll down the very noisy memory lane that is the Serena Williams-Maria Sharapova rivalry (yes, it's a rivalry, you guys). After hearing from Day 8 winners Milos Raonic and Johanna Konta, we gear up for the marquee women's quarterfinal with some archive audio of past Melbourne meetings, and then hear about the tactical side of their match-up from tactician Craig O'Shannessy, who has worked as a consultant with Team Sharapova on trying to solve the Serena riddle.

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