Serena Williams said she missed her daughter's first steps due to training

Working moms around the world felt the heartache of the tennis legend, who said she "cried" after she missed her daughter's first steps because she was training.
2:04 | 07/09/18

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Transcript for Serena Williams said she missed her daughter's first steps due to training
That ur that, robin. Now to Serena Williams as she H T wimbledon court this morning she's Ong aboutn court battle veg she missed her daughterirteps while training. 000s are weiing in with support andvi Magg Rulli has the story. Patty-cake, pat-cake Ker's man. Reporter: Tennis phe Serena Williams is known for openly documents life with daughter oly since her birth September. Mommy needs to you help put this B in. Reporter: On thelsf winning her third round matcht wimbledon, was is revealing a lestone moment she missed and hertional reaction. Tweeting sheker first steps. I was training and missed it. I cried. Serena experiencin a familiar feeling for working parents. Say momma. Reporter: Ws previously sharing challenges of balan od with her career in R hbou-serieseing Serena". I've been tennis player basically my entire live been a mom for eight months.holy I shouldn't have T choose between the two Iden. Reporter: Speaking with our ownin Roberts this S I'm havin the best time as a mom. I just walked out and wasen Herra hugs and kisses and it's justlike, she's the best. Sd to leave her. S hard. R other mothers with encouraging mge sayings not easy but our girls sees there grinding and living our dre and that's got tomean something. Another inou don't have to be ect to be a greatmom. Just do your N many ways I think she's like a typical new mom and what a statement that is for new mothound the world, for people who look up to R, for peho are trying juggle their lives. Reporter: For "Good morning Erica," Maggie Rulli, ABC news, New York. Beautiful baby Must be hard to balance, though, B I'm glad she's putting it all out there. Encoung too. Thepo she's receiving. When I sat down with her she was running a lit late. She didn'tt to leave her baby. Blame her for th Congratulate T see the support's reg. We don't want tome her.

This transcript has been automatically generated and may not be 100% accurate.

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