The 27-year-old Japanese also beat top seed and world No. 2 Casper Ruud in the quarterfinals.

Both world No. 1s were among a slew of current top players and tennis legends who took to social media to celebrate the 20-time Grand Slam champion.

From Rafael Nadal to Iga Swiatek, the game's brightest lights paid tribute to the 20-time Grand Slam champion in the wake of his shock retirement announcement.

Our running, on-the-grounds recap from Flushing Meadows.

Two of Saturday's aforementioned contests involve lefties. Will either punch their ticket to the second week of the New York major?

The Bulgarian isn't exactly playing well coming into this tournament, but his left-handed opponent is in the midst of remarkably awful stretch.

There are no shortage of Grand Slam champions looking to turn things around in North America.

Not even the stars could have called half of the twists and turns of this grass-court Grand Slam—and we're only halfway through the early rounds.

Many people are asking: “Can Nick Kyrgios win Wimbledon?” Let's first preview his second-rounder—along with two other must-see matches.

As the top players descend on the All England Club, Williams revealed her revamped coaching squad following a split with Patrick Mouratoglou.