The final image of Juan Martin del Potro on a tennis court could have been his familiar headband resting over the net. Simple, poignant, understated and totally fitting with his elegant, injury-wracked career.

Novak Djokovic and Juan Martin del Potro played one final match on Sunday and both players likely gained even further respect.

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

Novak Djokovic reserved special praise for Juan Martin del Potro after losing to the Argentinian in his final match before retiring.

The Argentine champion will say goodbye to tennis in an exhibition match in Buenos Aires against the 24-time Grand Slam champion

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

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.

Juan Martin del Potro says he wants to “live my life without pain” as he prepares to face Novak Djokovic in an exhibition match to commemorate the end of his tennis career.

Juan Martin del Potro bid farewell after beating Novak Djokovic 6-4, 7-5 in an emotional exhibition match in front of his home crowd in Buenos Aires, Argentina on Sunday.

Novak Djokovic spoke about his rivalry and friendship with Juan Martin del Potro over the 17 years on tour ahead of the Buenos Aires exhibition match. Speaking to the media, the Serb dubbed the 36-year-old Argentine's career among the greatest and acknowledged the various injuries that hampered his progress.

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