Serena Williams plays US Open as she's cheered on by husband Alexis Ohanian ...

Serena Williams is on track for her 24th Grand Slam title, after another good day at the US Open.

And the four-time Olympic gold medalist had the best support system cheering her on in the stands.

She was supported by husband Alexis Ohanian and daughter Alexis Olympia Jr, as she faced off Saturday against Sloane Stephens at the USTA Billie Jean King National Tennis Center in Flushing Meadows, New York.

Cheer section: Serena Williams was supported by husband Alexis Ohanian and daughter Alexis Olympia Jr, as she faced off Saturday against Sloane Stephens at the US Open

Cheer section: Serena Williams was supported by husband Alexis Ohanian and daughter Alexis Olympia Jr, as she faced off Saturday against Sloane Stephens at the US Open

Winner winner: The 38-year-old lost her first set against Stephens, 27, before emerging victorious in the third round of women's singles, scoring 2-6, 6-2, 6-2

Winner winner: The 38-year-old lost her first set against Stephens, 27, before emerging victorious in the third round of women's singles, scoring 2-6, 6-2, 6-2

The 38-year-old lost her first set against Stephens, 27, before emerging victorious in the third round of women's singles, scoring 2-6, 6-2, 6-2.

Alexis, 37, carried their daughter, three, in the stands, as they cheered for mommy through their face masks.  

According to People, Serena said: 'I hope she saw her mama fighting. I don't think she was playing attention between you and me. I think she was playing with some princesses upstairs.' 

She married the Reddit co-founder in November of 2017 in New Orleans, two months after welcoming their first child. 

Supportive family: Alexis, 37, carried their daughter, three, in the stands, as they cheered for mommy through their face masks

Supportive family: Alexis, 37, carried their daughter, three, in the stands, as they cheered for mommy through their face masks

Proud mom: According to People, Serena said: 'I hope she saw her mama fighting. I don't think she was playing attention between you and me. I think she was playing with some princesses upstairs'

Proud mom: According to People, Serena said: 'I hope

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