Federer overcomes second-set stutter, while del Potro and Zverev overcome illness to win at Shanghai Masters
Karolina Pliskova and Aryna Sabalenka both moved closer to a spot in the WTA Finals by reaching the quarterfinals at the Tianjin Open
Top-seeded Elina Svitolina has kept alive her chances of reaching the WTA Finals in Singapore by beating Australian wild card Priscilla Hon 6-2, 6-3 at the Hong Kong Open
Aryna Sabalenka moves closer to a spot in the WTA Finals by beating Sofia Kenin 7-6 (4), 4-6, 6-0 in the first round of the Tianjin Open
Nikoloz Basilashvili won his sixth straight match by beating Denis Shapovalov 6-2, 6-2 in the first round of the Shanghai Masters
Kristina Kucova recorded her first WTA main draw victory in over a year when she beat Jelena Ostapenko 5-7, 6-3, 6-2 in the first round of Hong Kong Open
Four American players pulled off upsets at the Shanghai Masters, but a fifth wasn't so lucky
Top-seeded Karolina Pliskova needed six match points to beat Varvara Lepchenko 6-2, 6-7 (3), 6-3 and advance to the second round of the Tianjin Open
Three chair umpires from Thailand have been banned for life from tennis after being found guilty of match-fixing and betting offenses
Caroline Wozniacki defeated Anastasija Sevastova 6-3, 6-3 to win the China Open and her third WTA title of the year on Sunday
