Traore played the last half hour as a substitute in a thrilling cameo in which he showed his power and lightning speed, while Olmo showed intelligence linking midfield and attack.
"As we didn't train together for quite a long time, we still suffered some problems on both the attacking and defending ends," she noted.
Malian captain Hamari Traore secured the opening goal in the third minute while El Bilal Traore and Haidara Amadou also scored in the 49th and 75th minutes respectively to secure a convincing win for the Eagles.
"When I started my career I didn't imagine or dream of being part of a fourth qualifying tournament. For me it's a source of pride. I'm enjoying it to the fullest, in the knowledge that my career is drawing closer to an end."
Jia said that he had made plans for a three-phase training camp ahead of the playoff.
Peng Huaqian's three-pointer whittled away Fujian's lead to two points with 26 seconds on the clock. Fujian guard Wei Yu-chun converted one of two free throws on the ensuing possession, but Deng Ruijie had a layup blocked by Wang Qiuyi, thus ruining Wuhan's chance of a comeback.
Meanwhile, Angel Romero and Andre Carrillo each scored braces as Paraguay and Peru drew 2-2 in Asuncion.
Ahead of the start of the first round, player Stuart Carrington and referee Andrew Barklam tested positive for COVID-19.
"We came into this match with the mentality of challenging Xinjiang. I hoped that our players could show our style in such an intense game," said Jiangsu coach Ding Tie.
He admits to entering a new world as "it is a significant step from Formula two to one. We speak about a time difference of 11 to 12 seconds."
Among the newcomers are Aston Villa midfielder Douglas Luiz and Atletico Madrid left-back Renan Lodi, both of whom belied their lack of international experience with assured performances at Corinthians Arena.