The 33-year-old Juan Martin del Potro played what should be his last career match on Tuesday night in Buenos Aires. Del Potro has been dealing with a knee injury since 2018, undergoing four surgeries but failing to recover and play injury-free.
Juan Martin's last notable season came in 2018 when he claimed the first Masters 1000 title, played the US Open final and became world no. 3. Del Potro qualified for the ATP Finals for the fifth time in a career that year after beating Karen Khachanov in the second round in Beijing.
Juan Martin toppled Karen 6-4, 7-6 for his 45th victory of the season that propelled him towards London, where he joined Rafael Nadal, Roger Federer and Novak Djokovic. The Argentine made the ATP Finals debut at 20 in 2008, defeating Jo-Wilfried Tsonga in two tight sets and losing to Novak Djokovic and Nikolay Davydenko to end his debut run in the round-robin stage.
Juan Martin del Potro played on a high level in 2018 before injuring his knee.
A year later, Juan Martin was the title contender at the ATP Finals in London. The Argentine defeated Fernando Verdasco, Robin Soderling and Roger Federer to set the title match against Nikolay Davydenko, who toppled him 6-3, 6-4.
After struggling with injuries in the following years, del Potro returned to London in 2012. The Argentine kicked off the tournament with a loss against David Ferrer before ousting Roger Federer and Janko Tipsarevic to secure a place in the semis, where he lost to Novak Djokovic in three sets.
Novak and Roger halted Juan Martin in three sets in the round-robin stage in 2013, and the Argentine returned to the premium ATP event five years later in 2018. Del Potro secured the first Masters 1000 crown in Indian Wells after fending off three match points against Roger Federer in a thrilling final.
Juan Martin was the semi-finalist in Miami and Roland Garros, gathering more points and losing an epic Wimbledon semi-final to Nadal in four hours and 48 minutes. The Argentine lost the Los Cabos final and played on a high level at the US Open for his second Major final and the first in nine years.
Nadal retired against del Potro in the semis, and the Argentine lost the title clash to Djokovic in his last notable title match. Juan Martin had to skip the ATP Finals following that terrible knee injury from Shanghai, and he played only a couple of matches in 2019 before injuring his knee again at Queen's.