Goodbye!published at 12:18 Greenwich Mean Time 20 January 2019
Federer 7-6 (13-11) 6-7 (3-7) 5-7 6-7 (5-7) Tsitsipas
And breathe...
Right, we're going to leave this live text here, but stick with 5 live sports extra for commentary of Sloane Stephens v Anastasia Pavlyuchenkova.
There's also highlights tonight on BBC Two at 17:15 of the day's play in Melbourne.
I'm going to leave you all with this superb Tweet from the man who has just played out of his skin to beat Roger Federer.
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