However, under the eccentric tutelage of coach Marcelo Bielsa, Leeds refused to lie down, and equalized in the 12th minute through Jack Harrison after a fine counter-attack.
Zhao's compatriots Lu Ning and Xu Si both competed in the other group on Thursday as David Gilbert edged them out with an advantage of the break.
Li Ang netted a right-sided free-kick on 74 minutes to put the game beyond doubt, with a sweet finish for Suning.
Dortmund controlled possession but had to wait until the 21st minute for their first clear-cut chance, as Haaland's header called Yann Sommer into action.
The two sides went into the game with a point separating them; with Al-Nassr in second place with four points needing a win to keep them at arm's length from third-placed Sepahan.
Gong Kewei of Hubei competes during the javelin throw of Decathlon on Day 2 of the 2020 Chinese National Athletics Championships in Shaoxing, east China's Zhejiang Province, Sept. 16, 2020. (Xinhua/Jia Yuchen)
From the kickoff, the "BVB" assumed control and implemented their offensively minded strategy while the Foals lurked for their chances on the counter.
"He's an important leader for the team and a big part of what we're building. He wants to be up there with the best players in the world and leave his mark. He can achieve that here," said Arteta.
Marco Rose's men threw everyone up front but got caught flat-footed following a corner, as Sancho had a lot of green ahead and teed up for Haaland, who put the result beyond doubt after wrapping up his brace in the 78th minute.
Jozwiak started his senior career for Lech Poznan in 2016 after coming through he club's youth academy. He made 104 appearances and scored 15 goals during his spell with Poznan from 2016 to 2020, including a brief loan to GKS Katowice in 2017. Enditem
Ramy Bensebaini couldn't hold the pace and tripped Reyna up inside the box. The video assistant referee intervened and awarded the "BVB" a penalty. Haaland stepped up and sent Sommer into the wrong corner to double the lead in the 54th minute.