Lewandowski not only collected the trophy for the best striker but crowned the club's triumphal march by winning the UEFA Men's Player of the Year award.
The hosts dominated early as Jorge Recalde scored either side of a Carlos Sanchez penalty at the Manuel Ferreira stadium in Paraguayan capital Asuncion.
"Liaoning put a lot of pressure to us in the first set, so I encouraged my players to counterattack them even more fiercely," said Zhejiang head coach Wang Hebing.
Fernando opened the scoring for Guoan in the 17th minute, as he sent Zhang Yuning's pinpoint through ball into the top-left corner.
The 16-team CSL was split into two groups respectively in Dalian and Suzhou. Both groups will play 14 rounds in the first phase, which is to end next Monday.
Other games on Thursday see Athletic Club at home to Cadiz, while Sevilla entertain Levante in the Sanchez Pizjuan Stadium. Enditem
Wang Yuanyuan (L) of Tianjin spikes the ball during the Group A match between Tianjin and Beijing at the 2020 Chinese Women's Volleyball Championship in Jiangmen, South China's Guangdong Province, Sept. 27, 2020. (Xinhua/Qin Lang)
Valencia were held 1-1 at home to recently promoted Huesca in a game the visiting side probably deserved to win, but had to settle for Dimitrio Siovas' header cancelling out Daniel Wass' fortunate opener for the home side.
"To be honest, we've all been physically and mentally exhausted for more than 70 days, I think every player here is a hero," said Shandong Luneng coach Li Xiaopeng.
Barca are still working in the transfer market, however, with Ousmane Dembele now linked to a move to Manchester United as the club chases Memphis Depay - a personal request of Koeman's.
Beer Sheva scored the only goal after just four minutes of play with a penalty from Portuguese midfielder Josue, after Plzen's goalkeeper Ales Hruska fouled Colombian striker Jhonatan Agudelo.