Australian Open 2021 week one - Serena stuns and struggles; crowds come and go; injury woes for Djokovic and Nadal?

Just in the nick (Kyrgios? lol sorry) of time before the second week begins, we're here to guide you through all the biggest and best talking points and matches from week one, and go back over the many ATP and WTA matches held in Melbourne Park last week.
The state of Victoria has gone into a five-day lockdown, meaning the incredible, lively, and sometimes just very drunk crowds that we've all loved hearing over the last week have had to go - quite literally in the middle of Djokovic v Fritz. 
We've had some incredible finals-worthy clashes from Shapovalov, Sinner, Halep, Tomljanovic, Tsitsipas, Kokkinakis, Thiem, and of course the king of Hisense / Melbourne / John Cain Arena - Kyrgios.
There have also been tough and teary losses for the likes of Kenin and Monfils, core injuries galore for Djokovic and Berrettini, and a back injury finally starting to get better for Nadal - the man subject to the finger from a presumably drunk Svitolina fan in the crowd earlier this week.
We also touch on some of last week's winners and runners up like Barty (the party is on), Felix, Russia, Italy and more. And of course nothing is complete without a prediction - we're guessing who the finalists and winners will be next weekend in Melbourne Park, and we're disagreeing.