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Serena Williams, already regarded by some as the greatest tennis player of all time, is competing today in the U.S. Open women's singles final against 20-year-old Naomi Osaka.

If Williams, 36, wins today's match, she will tie Margaret Court's all-time record of 24 Grand Slam singles victories. What's especially remarkable about Williams's latest historic run — besides the fact that she's still playing at a world-class level at the age of 36 — is that a year ago she missed the U.S. Open to give birth to her daughter, Alexis Olympia Ohanian, Jr.

Osaka, who entered the U.S. Open seeded at No. 20, is the first Japanese woman to appear in a Grand Slam singles final. She has said she grew up idolizing Williams—asked after her semi-final win if she had a message to send to her next opponent, Osaka replied: "I love you!"

Here are all the details for how to watch Serena Williams vs. Naomi Osaka in the 2018 U.S. Open Final.

What Time Does Serena Williams Play Today?

The women's singles final in the 2018 U.S. Open is scheduled to begin at 4 p.m. ET on Saturday, September 8.

The match is being broadcast on ESPN. The U.S. Open men's singles final match is scheduled for Sunday, September 9, at 4 p.m. ET, also on ESPN.

Assuming you have a satellite or cable TV package with ESPN, all you have to do to watch Serena Williams play today against Naomi Osaka in the women's singles final is tune in to ESPN. If you are trying to watch U.S. Open tennis without cable, read on below.

How to Watch U.S. Open Tennis Online for Free

Many streaming TV services include ESPN in their packages, and they come with free trials that allow new subscribers to test them out for roughly a week. So if you'd like to live stream the Serena Williams match for free, you can sign up for one of these services and watch ESPN online — on a tablet, laptop, connected TV, or any other device you want.

The services that will let you live stream ESPN and dozens of other channels include Hulu Live, Sling TV, DirecTV Now, Playstation Vue, and YouTube TV.

The basic streaming package from most of these services start at around $40 per month, after the free trial period ends, for a roster of 50+ channels. Sling TV is the cheapest of the bunch that includes ESPN, with the "Sling Orange" option at $25, but at that price point you'll get access to only roughly 30 channels.

In all cases, remember to cancel the service before the free trial period ends if you do not want to become a paying subscriber.

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