Juan Martin del Potro has earned a spot in the last big tournament of the year…
The 30-year-old Argentine tennis player has qualified for the ATP Finals for the fifth time by beating Karen Khachanov 6-4, 7-6 (4) Wednesday at the China Open.
del Potro, who reached the US Openfinal this year, last qualified for the season-ending tournament for the top eight players in the world in 2013.
del Potro will next meet Filip Krajinovic in the quarterfinals in Beijing. Krajinovic defeated Feliciano Lopez 7-6 (5), 6-3.
He was the runner-up in 2009, losing to Nikolay Davydenkoin the finals of the ATP World Tour Finals.