Serena Williams just got the best surprise from husband Alexis Ohanian Sr. and daughter Alexis Olympia.

The Reddit co-founder bought four vacant billboards along a freeway in Los Angeles to give the sweetest shoutout to his wife – and new mom to their baby girl – ahead of Williams’ first tennis match since giving birth.

RELATED: Serena Williams Details Difficult Birth Of Daughter Olympia: ‘I Almost Died’

“Olympia and I wanted to welcome her back to tennis,” he wrote to Instagram. “Designed them myself, with some help from Jr.”

“Greatest momma of all time, Serena Williams,” the billboards read along with adorable pictures on baby Olympia and Williams.

RELATED: Serena Williams Surprises Group Of Young Girls With ‘Black Panther’ Screening

The tennis pro saw the oversize images on Monday, on her way to Indian Wells, Calif., where she will compete in the 2018 BNP Paribas Open in March.

On Thursday, William posted an Instagram video expressing her love for her husband, and her daughter.

“I’m so fortunate to have @alexisohanian and @olympiaohanian by my side for my comeback,” she captioned the video. “I love my surprise so much from them. I feel so special. Love you both.”

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