Nike said it created the ad to \"put spotlight on female athletes who have broken barriers, brought people together through their performance and inspired generations of athletes to chase after their dreams.”

(MORE: Serena Williams talks Australian Open loss, what she is still learning after maternity leave)

People on social media praised the ad, which has nearly four million views on YouTube.

\"If they think your dream is crazy, show them what a crazy dream can do\"
Just do it!
This ad is beautiful.#justdoit #womenempowerment #MondayMotivation pic.twitter.com/ORdZTy1MJ2

— Wilma Chebet (@ChebetWilma) February 25, 2019

Tested for steroids ‘cause how could she have muscles like that? #crazy me at 27 in 1984 #track #muscles #nosteroids #girlcanrun #justdoit pic.twitter.com/e0CRTxP6za

— Elaine Weeks (@selaineweeks) February 25, 2019
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I absolutely love this! It’s only crazy until you do it. ???????????????????? @nike #letsgoladies #justdoit #girlpower #nike

A post shared by Katie Couric (@katiecouric) on Feb 24, 2019 at 10:58am PST

if you don't get emotional with this #Nike commercial, there's definitely something wrong with you. Wow.#JustDoIt pic.twitter.com/ENXmqvXtPQ

— mr. man on the moon ?? (@mr_motm) February 24, 2019

The Nike ad is Williams' second women empowerment moment in two major TV events.

The Grand Slam champion also starred in a Super Bowl commercial this month for Bumble, the dating and networking app where women make the first move.

(MORE: Oscars 2019: Queen, Lady Gaga, Tina Fey, 'Wayne’s World' and other top moments)

The commercial, titled \"The Ball is in Her Court,\" was created and directed by an all-female team.

\"We’re taught as a society that we have to wait and be second, but that’s not true,\" Williams said on \"Good Morning America\" last month. \"We can be first. I love being first. I only like being first.\"

View this post on Instagram

A post shared by Serena Williams (@serenawilliams) on Feb 3, 2019 at 6:00am PST

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