Serb Novak Djokovic, the No 4 seed, moved into the last 16 of the Shanghai Masters by beating Italian Flavio Cobolli, the No 28 seed, 6-1, 6-2 at the Qi Zhong Tennis Center on Tuesday.
Djokovic, ranked No 4, will next play Russian Roman Safiullin, who defeated American Frances Tiafoe, the No 13, seed in his third-round effort.
The 37-year-old Serb won against American Alex Michelsen (7-6 (3), 7-6 (9)) in the previous round of the Shanghai tournament.
During the second round of the Shanghai tournament, Cobolli, ranked No 30, defeated Swiss wildcard Stan Wawrinka (6-7 (6), 7-6 (4), 6-3).
Shanghai Masters 1000, other third-round results (Qi Zhong Tennis Center, hard, USD 8.995.555, most recent results first):
- Tallon Greek Spoor vs. Alexander Zverev
- David Goffin vs. Marcos Giron: tuesday
- Holger Rune (12) beat Jiri Lehecka (33): 6-4, 7-5
- Frances Tiafoe (13) beat Roman Safiullin:
- Grigor Dimitrov (9) beat Alexei Popyrin (20): 7-6 (5), 6-2
- Ben Shelton (14) beat Roberto Carballes Baena: 6-3, 6-4
- Taylor Fritz (7) beat Yosuke Watanuki (Q): 6-3, 6-4
- Jakub Mensik beat Alexander Shevchenko: 6-1, 6-7 (5), 6-2
- Tomas Machac (30) beat Aleksandar Vukic (Q): 6-4, 6-2
- Gael Monfils beat Ugo Humbert (16): 7-6 (7), 2-6, 6-1
- Stefanos Tsitsipas (10) beat Alexandre Muller: 6-3, 7-5
- Tommy Paul (11) beat Alejandro Tabilo (19): 6-7 (2), 7-6 (6), 6-2
- Carlos Alcaraz (3) beat Yibing Wu (WC): 7-6 (5), 6-3
- Jannik Sinner (1) beat Tomas Martin Etcheverry (31): 6-7 (3), 6-4, 6-2
- Daniil Medvedev (5) beat Matteo Arnaldi (29): 5-7, 6-4, 6-4