The win also saw the team from northwest France climb to the top of the table, two points clear of second-placed Lille.
The result left Flamengo, the reigning Brazilian and South American champions, sixth in the 20-team league standings with 18 points from 11 matches. Palmeiras are fourth with 19 points.
One player who is likely to miss out however, is striker Luka Jovic. The Serb was given a chance to show what he can do at the weekend, but produced another disappointing display (although he did provoke a red card for Betis defender Emerson). Everything points to Jovic being loaned out before the end of the season with Borja Mayoral remaining as backup to Karim Benzema.
"It's important for a striker to score goals," said Icardi. "Today we lacked the efficiency to kill the match earlier, but we are happy with the result."
The hosts did not stop, and created another amazing run, this time 14-0, on the way to a 44-33 lead in the 17th minute and 49-41 at half-time.
"To be honest, we've all been physically and mentally exhausted for more than 70 days, I think every player here is a hero," said Shandong Luneng coach Li Xiaopeng.
The 62-year-old didn't exclude himself from the solution after leaving RB Leipzig eight weeks ago.
Last-placed Dijon was closed to clinching its first win of the news season, but an injury-time penalty from Teji Savanier crashed their hopes as the team was held to a 2-2 draw at home against Montpellier. Enditem
With Paulo Dybala not fully fit, Pirlo started new signing Alvaro Morata to partner Ronaldo up front.
Suzhou, in east China's Jiangsu province, will host Final A, while Final B will be staged in Dalian, in northeast China's Liaoning province.
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