Shenhua doubled the lead eight minutes after the break when Peng's header found Bi Jinhao, who resisted a shoulder-to-shoulder challenge in the box to drill home.
Guoan now sits second in Group B with 25 points, with two rounds in the first stage remaining, and has booked a spot in Group C for the championship race.
Napoli also got their new season off to a good start as the Coppa Italia holder dominated Parma 2-0 with Dries Mertens and Lorenzo Insigne on target.
Monday's first game saw Aston Villa beat Sheffield United 1-0 in Villa Park on a 63rd minute goal by Ezri Konsa Ngoyo.
Atletico have emerged as the leading candidates to sign Suarez after allowing Alvaro Morata to return to Juventus, who had previously been interested in Suarez.
Hours later, Jiangsu Suning regained the second place after playing out a 0-0 stalemate with Shanghai Shenhua.
Ferreira, who replaced former Real Madrid midfielder Lucas Silva just after the hour mark, struck in the 92nd minute with a glancing header after an Alisson de Freitas corner.
BEIJING, Sept. 22 (Xinhua) -- The construction of the National Biathlon Center and National Cross Country Center in Zhangjiakou competition zone of the 2022 Beijing Winter Olympics was completed as scheduled on Tuesday.
The swimmers took part in vertical jumps, 30-meter sprints, pull-ups, trunk muscles strength training, and 3,000-meter runs in the two-day physical tests.
The WTT expected to mark the dawn of an exciting new era for the sport in 2021. But due to the COVID-19 pandemic, the groundbreaking table tennis organization is arranging its inaugural event calendar in the best possible way to overcome the challenges.
The National Biathlon Center will hold 11 biathlon events of the 2022 Winter Olympic Games, and the National Cross Country Center will witness 12 gold medal events in cross country skiing.