Former US Open champion Juan Martin del Potro pays an emotional goodbye to tennis after a farewell exhibition against Novak Djokovic.

Novak Djokovic and Roger Federer both paid tribute to Juan Martin del Potro at an emotional farewell match in Buenos Aires.

Juan Martin del Potro left fans in awe after clinching the El Ultimo Desafio win in Beuno Aires against Novak Djokovic.

Novak Djokovic has sent a touching tribute to Juan Martin del Potro ahead of the Argentine's farewell match this weekend.

With a spectacular show featuring Gabriela Sabatini and Gisela Dulko, Juan Martin Del Potro defeats Novak Djokovic 6-4, 7-5 in his farewell match. A tennis legend retires and all that remains is to thank him for so many moments,

Here are 5 wholesome moments that explain why Juan Martin del Potro picked Novak Djokovic as his opponent for the “El Ultimo Desafio”.

Tennis is often described as a gladiatorial sport, with its one-on-one battles played out on the grandest stages. Yet beneath the competitive fire, the sport has also seen deep friendships bloom—sometimes even between rivals.

It was an emotional night in Buenos Aires on Sunday as Novak Djokovic helped Juan Martin del Potro say goodbye to his tennis career. The Argentine tennis star beat the 24-time Major winner in his final match and both men immediately broke down in tears.