Tie-breakpublished at 10:16 Greenwich Mean Time 20 January 2019
*Federer 7-6 (13-11) 6-6 (1-3) Tsitsipas
Stefanos Tsitsipas looks annoyed as he overworks a cross-court forehand.
OH! Federer dobs a volley onto the baseline, it's called out, the umpire quickly overrules it - and we're going to have to replay the point!
Federer looks mutinous.