As she gets ready to return to the site of her last tournament win, the Australian Open, Serena Williams was in full competition mode this week at the Hopman Cup, the international team event.

From dominant performances to history-making moments, the week was quite full for one of the game’s all-time greats. Here’s a look at five of them.

1

Just Two Legends, Having a Hit

One of the most newsworthy occasions ever in tennis took place when Williams and Roger Federer—with 43 Grand Slam singles titles between them—faced off for the first time in mixed doubles. Federer and Belinda Bencic beat Williams and Frances Tiafoe in a fast-tennis match for the ages.

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2

Service With a Smile

Mixed doubles can be a hit-and-giggle affair sometimes, and Williams seemed to enjoy this particular moment as she and Tiafoe took on Stefanos Tsitsipas and Maria Sakkari.

3

The Working Mom

Williams had her family on hand, which includes her biggest fan of all: Olympia, her daughter and “teammate” at the 2017 Australian Open.

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4

On the Come Up

Williams and Tiafoe worked the red carpet before the on-court action began.

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5

Looking Sharp in Singles

Though the U.S. didn’t win any of its team matches, Williams took all of hers against a range of younger opponents making their way up the rankings.

Follow Van on Twitter: @Van_Sias