Thompson out of rain-marred Shanghai Masters

Thompson came close to securing the first break of the match but could not convert five break points in a marathon deuce game at 2-2 in the first set.

Both held serve from there until the Dutchman broke the Australian to 30 for a 5-3 lead before serving out for the set.

Griekspoor snatched an early break to 30 for a 2-1 lead in the second, then converted his second break point two games later for a decisive 4-1 advantage.

Thompson was outpointed on all stats, none more telling than his 39 per cent of points won on his second serve compared with 58 per cent for Griekspoor, who'll play second seed Alexander Zverev in the third round.

Two days after starting, seventh-ranked Taylor Fritz and 10th-ranked Grigor Dimitrov finally won through their second-round matches.

US Open finalist Fritz had led 4-3 in the opening set against Frenchman Terence Atmane before rain suspended play on Saturday and washed out all outside court matches on Sunday.

On Monday, the 26-year-old American needed two tiebreakers to see off No.161-ranked Atmane 7-6 (7-4) 7-6 (7-5), with only one break of serve for each in the two hour, two minute match.

Fritz will play Japanese qualifier Yosuke Watanuki in the third round. 

Dimitrov resumed on Monday with a set lead but down a break in the second against Zizou Bergs.

The No.73-ranked Belgian converted his advantage to take the second set before Dimitrov broke Bergs three times — for the loss of one of his own service games, to clinch the match 6-3 3-6 6-2.

Dimitrov will play Australian Alexei Popyrin in the third round.

 US Open semi-finalist Frances Tiafoe routed Zhou Yi of China 6-2 6-4, Holger Rune rallied from a set down to beat Matteo Berrettini 4-6 6-4 6-3, and Flavio Cobolli edged Stan Wawrinka 6-7 (6-8) 7-6 (7-4) 6-3 to set up a third-round match against record four-time champion Novak Djokovic.