Cedric Bakambu continued his goal-scoring form and broke the deadlock in the 23rd minute, as he sent Zhang Yuning's pinpoint through ball into the bottom corner.
Awaiting him in the next round is 20th seed Pablo Carreno Busta of Spain.
Atletico's finish to the season even gave hope that they could take advantage of the changed format for the last eight of the Champions League and secure a title that has so far evaded them, but German side RB Leipzig put paid to that optimism at the first hurdle in which Atletico showed many of their usual flaws and few of their virtues.
"We played well in the first half and created many chances, but we had difficulty after conceding the first goal," SIPG coach Vitor Pereira said.
Wuhan's 23-year-old bench goalkeeper Wang Zhifeng kept a clean sheet in the second half, and might become a start in the future together with Dong, who joined Wuhan from Hebei China Fortune.
13 minutes later, Anderson Talisca leveled the score with a similar long drive. Two minutes after that, Evergrande's Fernando Henrique kicked the ball home again in the melee in front of the gate but was ruled out as offside firstly. His goal was denied again by the referee in the 85th minute.
Chelsea director Marina Granovskaia described Havertz as "one of the best players of his age in world football".
In another friendly match, Senegal will face Mauritania at Lat-Dior Stadium of Thies, 70 km east of Dakar.
Chen Pu (R) of Shijiazhuang Ever Bright celebrates with his teammate Matheus Nascimento after scoring a goal during the 9th round match between Qingdao Huanghai and Shijiazhuang Ever Bright at the postponed 2020 season Chinese Football Association Super League (CSL) Suzhou Division in Suzhou, east China's Jiangsu Province, Sept. 5, 2020. (Xinhua/Yang Lei)
After dropping his serve to trail 6-5 in the first set of his fourth round match against Spain's Pablo Carreno Busta, Djokovic angrily smashed a ball in frustration which struck the line judge in the neck, causing her to fall to the ground.
According to WADA, government representatives have asked the Agency to consider the possibility of amending its rules so that such a move could face potential sanctions.