El Shaarawy bagged his brace in the 45th minute with a header after Moldova's defender Veaceslav Posmac's error.
Messi admitted Thursday's match did not pan out as the Albiceleste had hoped, rueing his team's lethargy early on.
The tables turned 10 minutes later when the Irish were in a similar situation and beat Slovakia goalkeeper Marek Rodak but Juraj Kucka deflected the ball away to safety.
Shanghai left Dongguan with no chance from start to finish, leading seven points at halftime, and managed to maintain its double-digit lead for the most of the second half. Center Zhang Zhiting scored 17 points off the bench. Huang Jing contributed 16 points.
The Paris Saint-Germain forward provided two assists and showed no signs of the back injury that forced him to miss Brazil's last two training sessions before the match at Corinthians Arena.
The reigning Australian Open champion will contest for her second major title with Polish teenager Iga Swiatek, who needed only 70 minutes to storm to a 6-2, 6-1 victory over Argentine qualifier Nadia Podoroska.
Lakers guard Danny Green missed a potential go-ahead 3-pointer, followed by a Markieff Morris turnover in the last minute, Heat guard Tyler Herro closed the game out for the Heat with a pair of free throws.
Germany remained unimpressed and took the lead again in the 58th minute as Florian Neuhaus exchanged a one-two with Havertz to score on his international debut.
XI'AN, Oct. 8 (Xinhua) -- In an ongoing charity football tournament in northwest China's Shaanxi Province, Wang Shasha impressed the spectators not only because she was the only female player on the field, but also because she was one of the best players on the field.
Wang won the hearts of the spectators in the stands with her outstanding performances, but she couldn't win the support from her mother, who believed girls should be elegant and focus on their academic studies. Wang only managed to convince her mother when she received an offer from a top high school because of her football talent.
"Since preparations started in January this year, under the guidance of the Asian Football Confederation (AFC), we have achieved great progress despite the COVID-19 pandemic, as the design schemes of nine stadiums have been confirmed by AFC," said committee chairman Du Zhaocai.