Postpublished at 08:27 Greenwich Mean Time 18 January 2022
Jonathan Jurejko
BBC Sport at Melbourne Park
The atmosphere on Cain has just been turned up a notch.
The sius (see 08:00 entry) turn to boos as Liam Broady walks out first. And the boos turn to cheers when Kyrgios follows.
A group of Greek supporters - all wearing blue t-shirts and chanting football-style songs - are particularly vocal.
Broady is a Manchester City fan. He must feel like he's turned up in the Old Trafford home end wearing his sky blue top.