Roger Federer and Rafa Nadal joined a star-studded line-up of tennis legends including Bjorn Borg, John McEnroe and Rod Laver to announce their involvement in the tennis world's newest international competition. Go on over to LaverCup website to learn more.

For the first time two of the greatest players of all time, Roger Federer and Rafael Nadal, have a chance to join forces, putting aside their rivalry to become teammates and fight to win the Laver Cup.

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photos: Getty-lavercup/fb