There was a lot of F-bombs and even a dig at world No.1 Rafael Nadal during the animated encounter in Melbourne.
Is this the biggest hint yet that the Russian will be walking away from the sport this year?
It was a strong start to the tournament from the top seed in the men's draw.
Belinda Bencic won a tricky encounter against Anna Karolina Schmiedlova while Madison Keys hammered Daria Kasatkina.
Ons Jabeur powered past Johanna Konta to book a place in the second round of the Australian Open.
With rain causing long delays on Monday, Tuesday will be a busy day as the tournament tries to get back on schedule.
The world No.20 has split opinion about what he is wearing at Melbourne Park.
It was an emphatic start to the tournament from the 20-time grand slam champion.
Defending champion Naomi Osaka brushed aside Marie Bouzkova in straight sets in round one of the 2020 Australian Open.
Both defending singles champions will begin their title defences on Monday down under.
Meet the unseeded players hoping to cause a stir at Melbourne Park.
The 29-year-old is making her final preparations ahead of her last grand slam appearance.
Roger Federer has rejected concerns that air quality will affect the Australian Open ahead of his first round match on Monday.
Here is a full breakdown of the men's draw at this year's Melbourne major.
Naomi Osaka could be set to clash with Serena Williams at the Australian Open as Simona Halep has been handed a tough draw.
More than AUS$4 million has been raised following the latest event in Tennis Australia's fundraising campaign.
Serious concerns have been raised by players over the current conditions at the Melbourne grand slam.
The upcoming grand slam leaves a sense of uncertainty for both players and fans
The tennis tour is set to get underway in a country currently experiencing devastating bushfires that have forced thousands to flee their homes.
With just over a month to go, wildcards for the first grand slam of 2020 have already been decided.