In maybe the most anticipated match of the tournament, Serena Williams is set to take on Naomi Osaka in the Australian Open semifinals.

For a lower-stakes competition, though, the pair also recently crossed paths in a game of "Guess Whom?" for Australia's Wide World of Sports.

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During the game, Serena danced, flexed her British accent and asked host Andy Lee strategic questions, such as whether the mystery person wears a bra (yes), is a sports figure (yes) and is older than 35 (no).

Ultimately, Serena narrowed it down to her upcoming opponent: Osaka.

Lee, who didn't make it to the end of his cards, was supposed to guess Britney Spears.

Osaka holds a 2-1 lead over Williams in their career head-to-head, with 2018 wins in Miami and at the US Open and a 2019 loss at the Rogers Cup. At the Day at the Drive exhibition in January, Serena beat Osaka in a match tiebreak, 6-2, 2-6, 10-7.