15:23 CET - Another seed has fallen by the wayside with Dayana Yastremska (24) losing 7-5, 6-4 to lucky loser Erika Andreeva (20) in Wuhan.
14:40 CET - In one of the last matches in Shanghai today, 12th seed Holger Rune (21) has come back to beat Matteo Berrettini (28) 4-6 6-4, 6-3 to progress to the third round. Rune will next face Jiri Lehecka (22).
13:32 CET - All of today's outdoor play has been cancelled in Shanghai due to rain, meaning that only the final second-round matches will be completed.
11:20 CET - Seeded Lorenzo Musetti (22) has fallen out of Shanghai at his first hurdle after having had a bye in the opening round. Belgian veteran David Goffin (33) defeated the Italian 1-6, 7-6, 6-2 to advance to the third round of the competition.
10:35 CET - Frances Tiafoe (26) has advanced in Shanghai with the 13th seed beating Yi Zhou (19) 6-2, 6-4.
In Wuhan, world number 16 Diana Shnaider (20) has lost 6-7, 6-3, 6-3 to Leylah Fernandez (22).
09:26 CET - Ninth seed Grigor Dimitrov (33) is through in Shanghai thanks to a hard-fought 6-3, 3-6, 6-2 win over Belgium's Zizou Bergs (25).
08:15 CET - Hello and welcome to Flashscore's coverage of today's tennis, which is already underway.
Taylor Fritz (26) has advanced in Shanghai with a 7-6, 7-6 win over Terence Atmane (22), while Beatriz Haddad Maia (28) has beaten Madison Keys (29) 7-6, 6-2 in Wuhan.