"He's definitely one of the toughest players I ever faced in my life. It's a matter of time that you will hold a Grand Slam for sure - if you don't mind waiting a few more years."
Novak Djokovic after beating Daniil Medvedev in the final to win a record-extending ninth Australian Open title.
"If I ever say farewell, I wouldn't tell anyone."
Serena Williams on whether her emotional exit from Rod Laver Arena to a standing ovation was a final farewell to Melbourne Park.
"I feel like the biggest thing that I want to achieve is – this is going to sound really odd, but hopefully I play long enough to play a girl that said that I was once her favourite player."
Women's champion Naomi Osaka on her dream of inspiring a new generation of players.
"I think she's human like the rest of us in this room. She just brings out her best in the big moments. But I don't think she's God. I think maybe Serena is. Maybe she'll get there, I don't know."
Jennifer Brady on Naomi Osaka after being crushed by the Japanese in her maiden Grand Slam final.
"Nick likes to say things. Some of them can be true, some cross the line. I think he has a brain in his head when he says stuff. There are many stupid things that he did in the past but there are things he has said in interviews ... that could be considered true."
Stefanos Tsitsipas on Nick Kyrgios' war of words with Novak Djokovic.
"Maybe she takes too much gin or tequila. I don't know. But honestly (it) was (a) strange situation but funny at the same time."
Rafa Nadal on the heckler who showed him the middle finger before she was ejected from the stands.
"I just like sugar ... sweet desserts, tiramisu, panna cotta, anything. I don't eat sugar during the tournament and I've got five cakes in my room. After the tournament it's going to be a big fight with the cakes."
Daniil Medvedev on his love for desserts.
"Just feeling the love. Just trying to spread the good word of the celebration. Everyone loves that celebration. It's well liked... Novak, I'm sure, doesn't like me and we both have respect for each other, but I don't like him at all, so it's fun."
Nick Kyrgios after imitating Novak Djokovic's celebrations.
"Just little reminder for you. In Asia we normally don't say the girl's age in public."
Hsieh Su-wei after being congratulated by the interviewer at Rod Laver Arena for "still going strong" at the age of 35.
"I think it's shit and what happened is shameful... This tournament, I think it's really crap... It's all about the money. There is a huge loss if they don't make the tournament."
Benoit Paire on the Australian Open organisers' treatment of players during quarantine.