Argentina tennis star Juan Martin del Potro had to end his season early yet again after he incurred a knee injury at the Shanghai Masters. The 30-year-old World No. 4 had to walk with his leg in a splint after doctors confirmed he had fractured the patella bone in the right knee.

In his maiden appearance at a Masters, Divij Sharan and Artem Sitak lost in straight sets to third seeds Marcelo Melo and Luksz Kubot. Meanwhile, at the Tashkent Challenger, Vishnu Vardhan and N Sriram Balaji suffered a shock defeat against Sanjar Fayziev and Jurabek Karimov in the quarter-finals.

Rafael Nadal and Roger Federer breezed into the quarter-finals of the Shanghai Masters on Thursday beating Fabio Fognini and Alexandr Dolgopolov respectively. US Open semi-finalist Juan Martin del Potro also booked a place in the last eight with a win over third-seeded German Alexander Zverev.

Australia ace Nick Kyrgios has been fined $10,000 and denied $21,085 prize money from his first-round game against Steve Johnson after the 22-year-old walked out of the Shanghai Masters’ match. This is the second consecutive year that the Australian has faced punishment for misconduct at Shanghai.