A day after the 23-time Grand Slam winner waved farewell at the US Open, celebrities, athletes and figures from the tennis world and beyond were still paying respects to the "GOAT".

It's hard to believe that some of today's top pros once had to qualify—and often together.

The former doubles No. 1 lifts the curtain behind the pro player’s search for the perfect racquet.

Whether it’s doubles partners or viewers at home, Mattek-Sands has made helping others uncover their passion for the sport she loves a life mission.

The Romanian finishes with 471 match victories, 38 tour-level titles, an Olympic silver medal and widespread respect from his peers.

The two players attended the Veronica Beard presentation, the CFDA/Vogue Fashion Fund Toast and more.

The duo recently claimed their first major title together at Wimbledon.

Partnering defending singles champ Iga Swiatek, the game's premier stateswoman outlines the key to doubles success, balancing media obligations, and how she evolved into an unapologetic extrovert.

As the draws start dwindling down, Doubles Take looks at the action in Paris.

The year's first Grand Slam is underway, and already there's been some big upsets.