"This is an exceptional situation," club lawyer Rodrigo Dunshee said in a video posted on Flamengo's Twitter account. "It is very important to end this at the root. The correct measure is to delay this game."
Henan missed the chance to equalize in the 64th minute when Fernando Karanga's spot-kick was blocked by Guangzhou Evergrande goalkeeper Liu Dianzuo.
Guoan suffered criticism after earlier fumbling a 3-0 lead against Qingdao, suffering instead a 3-3 tie in the first leg.
In other action on Sunday, Jamie O'Neill took top spot in his group after two wins and one loss.
BEIJING, Sept. 20 (Xinhua) -- Chengdu Better City edged Taizhou Yuanda 2-1 on Sunday to pocket their third straight win in China League One, the second-tier football league in China.
Brazil's Santos also moved within sight of a berth in the next round with a 2-1 win over 10-man Delfin in the Ecuadorian port city of Manta.
The Spanish side, which has Chinese owners, now travel to Sweden to play Malmo for a place in the group stage of the tournament. Enditem
But discussions between the government and the Grand Slam organizers were ongoing as to how this policy would affect Roland Garros, which has been scheduled from September 27 to October 11.
Sun Ke (L) of Shenzhen FC vies with Marek Hamsik of Dalian Pro during the 13th round match between Shenzhen FC and Dalian Pro at the postponed 2020 season Chinese Football Association Super League (CSL) Dalian Division in Dalian, northeast China's Liaoning Province, Sept. 24, 2020. (Xinhua/Pan Yulong)
Brighton produced a surprise as they won 3-0 away to Newcastle United. Neil Maupay scored twice in the opening seven minutes, the first from the penalty spot, and Aaron Connelly added a third with seven minutes left to play.
America de Cali forward Aldair Rodriguez, Deportivo Municipal midfielder David Dioses and Cesar Vallejo midfielder Raziel Garcia were named on a 30-man list that is expected to be pruned in the coming days.