This moment when Djokovic is singing on Rod Laver Arena for his mom's birthday
The crowd began the song, followed right after by the Serb.
Sweeny
Hijikata
02:30
Moller
Martin
11:00
Havlickova
Ruse
10:00
Zhang
Ku
02:30
Lepchenko
Udvardy
16:30
Alkaya
Clarke
08:00
Fery
Geerts
08:00
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