Luo Xinyu bagged 18 points for Jiangsu, who also got 14 points apiece from Xu Chenyan and Jiang Jiayin.
Colombia will host Venezuela in Barranquilla on October 9 before facing Chile in Santiago four days later.
In other fixtures on Sunday, Fortaleza was held to a goalless draw by Atletico Goianiense, Coritiba drew 0-0 at home to Sao Paulo and Botafogo tied 1-1 at home by Athetico Paranaense. Enditem
"We contained their three-pointer shooting quite well," Dongguan coach Lin Yaosen reflected.
Three internationals against Turkey, followed by the Nations League encounter against Ukraine and Switzerland, seems to have come at an inopportune moment.
Once inside the stadium, they refused to sit down and sang almost non-stop, even when their team looked doomed at 2-0 down at half-time.
Meanwhile Alaves has managed just one draw and suffered three defeats under new coach Pablo Machin, whose three-man defense has so far failed to work. The club from Vitoria is not known for being patient with its coaches and the fact it is the club's centenary season only adds to the pressure. The coach that loses this game on Sunday could lose more than three points. Enditem
"I think I played a really good match. I was very aggressive. I knew from last year I had to change something, so I really wanted to be better than last year and definitely, I was today," said the world No. 2.
He called the latest defeats of Liverpool (7-2) and Manchester United (6-1), aside from Bayern Munich's loss against Hoffenheim (4-1), the forerunners.
The 17-year-old assist-giver remained in the thick of things as Reyna's through ball met Haaland, who drilled his brace from the edge of the box into the top left corner with 66 minutes played.
Also on Sunday Feyenoord was far too strong for Willem II in Tilburg. The home team went in front through Vangelis Pavlidis, but Ridgeciano Haps, Bryan Linssen and a brace by captain Steven Berghuis earned Feyenoord a convincing 4-1 win. AZ drew 4-4 at Sparta after surrendering a 4-0 lead in Rotterdam.