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Australian Open announces switch to final-set tie-breaks for 2019 tournament | Australian Open | The Guardian
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Australian Open: Danielle Collins left 'a little embarrassed' after mistakenly celebrating victory too early in tiebreak | CNN
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Does Australian Open final have a fifth set tie-break? Wimbledon, US Open and French Open rules for final sets – The Irish Sun | The Irish Sun
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Roger Federer's Epic 5th Set Tiebreak | Federer v Millman | Australian Open 2020 Third Round - YouTube
Australian Open 2019, tie-break rules, super tie-break at 6-6, big change to final sets, longest Australian Open match ever
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Australian Open | Shapovalov topples Zverev while Nadal survives marathon tie-break | Tennis Threads Magazine
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