How to watch: From noon to 5 p.m. Eastern time on ESPN, from 5 to 8 p.m. on ESPN2 and from 8 to 11 p.m. back on ESPN; streaming on ESPN+ and ESPN3.

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The United States Open singles first round continues on Tuesday with a plethora of experienced veterans and exciting young players starting their campaigns toward the top of the ladder. Beyond tournament favorites like Serena Williams and Daniil Medvedev, there are plenty of exciting players to watch.
Here are some to keep an eye on.

Because of the number of matches cycling through courts, the times for individual matchups are at best estimates and certain to fluctuate based on the completion time of earlier play. All times are Eastern.

Andy Murray, a three-time Grand Slam winner, was last seen on the main stage of the singles world at the 2019 Australian Open. At the time, he was faced with a hip surgery that had the potential to end his career.

Now Murray, 115th in the ATP singles rankings, has pushed himself back onto the tour with a vengeance. Last week, at the Western and Southern Open, Murray beat Alexander Zverev, the fifth seed at this year’s U.S. Open, on his way to the round of 16.

Although Murray, 33, is not performing at his peak, his relentless defensive efforts have been on display since his return, and he will look to make a deep run.

If a Grand Slam tournament happens and there are not 50,000 daily spectators there to watch it, is it really a scene? The players are making it one.

The four biggest tournaments in tennis, known as the Grand Slams, so clearly reflect the cities in which they take place.

January offers the Australian Open, a free and easy party in Melbourne. The French Open, in springtime in Paris, leads with the beauty and elegance of Roland Garros and its red clay. Wimbledon, in July in London, with its hallowed grass, is tradition and history, with a box reserved for the royal family.

And the late summer finale is the United States Open in New York, a tournament every bit as noisy and chaotic and nonstop as the city itself, with matches that sometimes start near midnight and stretch well past it, with fans carousing into the night.

The Adidas and U.S. Open stores were filled only with people stringing rackets, six feet apart, instead of fans swiping plastic for souvenirs. Metal shutters were pulled down on every stand in the food court. No Franks and Fries or Neapolitan Pizza or Ben & Jerry’s.

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