There is also a slight doubt over Martin Odegaard, who returned from loan from Real Sociedad over the summer and was in the starting 11 to face his former club a week ago.
Later on Wednesday, Jiangsu also defeated Yunnan 3-0 (25-8, 25-18, 25-20). However, their victory was not easy.
West Ham will have Alan Irvine on the bench after David Moyes tested positive for Covid-19 along with Issa Diop and Josh Cullen ahead of their midweek Carabao Cup win against Hull City, while Nelson Semedo could make his Wolves debut after joining from Barcelona.
"We know that nobody can ignore the importance of Paolo, but we have to try replace him and the national team has responded," Gareca told reporters in a virtual press conference.
Philippe Coutinho also has a lot to prove after his loan spell at Bayern, while questions remain over what style of play Koeman will look to impose.
In Sunday's only other fixture, Vasco da Gama missed the chance to stay in touch with leaders Atletico Mineiro after a 1-0 defeat at Coritiba. Robson Fernandes struck the winner from the penalty spot in the 90th minute.
Jiangsu led 10-2 lead to start the match as spiker Zhang Changning could hardly be stopped, and Shanghai also faced great pressure upon blocks from Xu Ruoya.
Reynolds has been called up to various youth national team camps of the United States and was the youngest player on the US Under-17 team during the CONCACAF Championship in 2017. He also represented the United States in the 2017 FIFA U-17 World Cup in India.
Local cyclists prevailed in all categories, with Liang Shizhong and Huang Shihai winning the men's title in 14:02:17, Che Ruirui and Chen Hongyu taking the women's title in 16:45:04, and Song Hanbing and He Huaisong triumphing in the mixed category in 16:02:34.
Guangzhou regrouped after the interval and levelled in the 71st minute when Wu Chao slotted the ball into the net after collecting a pass from his teammate in the box.
"As hard as it was to come to this conclusion, I have so much to look forward to in 2021, including the Olympics. I want to use this time to focus on my game so I can come back stronger and better than ever.