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.

The 32-year-old dismissed retirement questions in her inimitable style after a strong surge has seen her finish runner-up in Cincinnati, and return to the second week of a Slam for the first time since 2020.

The No. 8 seed reached her first US Open quarterfinal with a straight-sets win over the two-time Wimbledon champion.

After staving off a match point in her last encounter, will Petra Kvitova carry her clutch effort over into Monday's round of 16?

Much like for so many other folks, Serena Williams’ last match was must-see TV for players still in the tournament, so Jessica Pegula and Petra Kvitova tuned in from their hotel rooms the night before their victories led off Saturday’s schedule and set up a fourth-round showdown.

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 former world No. 2 shared the good news on social media following her runner-up finish at the Western & Southern Open.

The former world No. 12 doesn’t have a single ranking point to defend until next March, either.