Day 4 at the Aus Open. Kei Nishikori and Naomi Osaka triumph, the new tie-breaker rule explained, we meet the player drivers, and learn what it takes to be a chair umpire.
The AO Show
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Bonus: Darren Cahill on making a Grand Slam champion
Demon's second 'Newk' "just the beginning", Tiley teases AO24, Stef’s ‘home Slam’
Rafa to reignite in Brisbane! Woz ready for return to Oz