As everyone has heard by now, 72 players are in strict lockdown in Australia and anyone freed from their hotel rooms can practice for two hours each day with just one other player for the first week.
But what you didn't know is that Serena Williams chose her three-year-old daughter Olympia as her partner.
Olympia has clearly got a hang for this tennis thing already. She started taking lessons last fall, with her mom on hand, but trying to not get super involved.