"We will have a short break before resuming training on October 5, we will try our best to win the game no matter who are our upcoming rivals," said Wu Xinghan of Shandong Luneng. Enditem
"We are a team under construction and we didn't have time to try more solutions in the pre-season, so let's try to find them in these first few games," he added.
Inter were three goals up in the 28th minute as Lukaku bagged his second after Roberto Gagliardini had smashed in a volley.
Born in the Netherlands, Dest had had a contract at Ajax until mid-2022.
"I can feel I'm improving, both on the psychological side and technical side," said Wang Yizhu. Enditem
All 12 Shanghai players in the match list made the scoreboard, with Zhang Zhiting and Li Yingyun scoring 15 and 10 points respectively.
For the first time this season, Thomas Tuchel was able to field his Fantastic Four - Neymar, Mbappe, Icardi and Angel Di Maria - at the front and it was rewarded with a comfortable victory.
Koeman changed the style Barca used under Quique Setien, adapting a 4-2-3-1, with Antoine Griezmann leading the line, Frenkie de Jong and Sergio Busquets in the midfield holding roles and Messi, Philippe Coutinho and Ansu Fati in an attacking line of three.
Olimpia is the most successful club in Paraguayan football, having won the country's first division title a record 44 times and the Copa Libertadores three times. Enditem
In a tightly contested first quarter, the two sides saw many lead changes before it was knotted at 21-all.
Comments of team leaders indicate growing unrest in a squad that seems to fear their ambitions could be disappointed when trying to repeat some of last season's success after winning the treble.