John McEnroe has joked about a potential return to tennis as he captains Team World at the Laver Cup in Vancouver, Canada.

Team World have been the dominant force at the Laver Cup so far as they aim to defend their title. The Team is comprised of Taylor Fritz, Frances Tiafoe, Ben Shelton, Tommy Paul, Felix Auger-Aliassime, and Francisco Cerundolo.

They are currently leading against Team Europe, made up of Andrey Rublev, Casper Ruud, Alejandro Davidovich Fokina, Hubert Hurkacz, Arthur Fils, and Gael Monfils.

64-year-old McEnroe had a hugely successful tennis career in the 1970s and 1980s. The American won seven Grand Slam singles titles, has the best single-season win rate of the Open Era, and was ranked World No. 1 in singles and doubles simultaneously.

While watching his team from the sidelines in Canada, McEnroe joked about coming back to the sport.

"I always feel that desire, in a way, but then I go look in a mirror and I start with looking at the color of my hair, and I'm, like, How about doubles?," he said with a smile.

"Then I start to play doubles, and the balls come twice -- I can barely see them. Then I go, How about sitting on the bench?" he continued.

McEnroe went on to speak about his experience leading Team World at the Laver Cup and how much he enjoys it.

"Obviously you're dealing with some people that I've dealt with before, but also some new people, which is fun, actually. You know, I really enjoy this event.

"It's one of my -- how often do I get to be part of something like this? I think you know from past experience that I love team events, you know, so it's been a big part of my career," he said.