Growing infection figures around Cologne's venue are forcing Germany to play behind closed doors. Simultaneously, approval figures among German supporters decrease.
Thanks to the third-round win, Wuhan moved atop the championship group standings with six points.
Fueled by Wei's six points in a row, Inner Mongolia widened the gap back to seven points, and they used a 22-13 second quarter to build a 13-point advantage at halftime.
It is Athletic Bilbao's first signing since January 2019.
Elsewhere, Eintracht Frankfurt came from behind to beat Hoffenheim 2-1. Borussia Monchengladbach wrapped its first victory of the campaign after easing 3-1 past rival Cologne. Wasteful Bayer Leverkusen shared the spoils with newly-promoted Stuttgart following a 1-1 draw and Leonardo Bittencourt's sole goal of the match helped Werder Bremen to edge newcomer Armenia Bielefeld. Enditem
Sunday's win and the midweek victory against Valladolid were largely thanks to goalkeeper Thibaut Courtois, who produced man of the match performances in both games to keep Madrid's rivals at bay.
Madrid boss Zinedine Zidane, who has to work out what his most effective line up without the injured Eden Hazard is, could start with Wednesday's goal scorer, Vinicius Jr alongside Karim Benzema and Marco Asensio.
Last year "champion" Banska Bystrica (crowned after the abrupt end of the 2019/2020 season in March caused by the COVID-19 strike and subsequently stripped of the title as the governing body decided not to crown a champion of the shortened season) and the runner-up Slovan Bratislava are still trying to find their lost forms, losing their respective second-round fixtures.
Adama had looked set to make his Spain debut in September, but never got to play after confusion over a PCR test for the coronavirus, COVID-19, and the Spanish Football Federation (RFEF) are confident he will decide to represent Spain rather than Mali.
Serge Aurier added a fifth soon after the break, and a Kane penalty 10 minutes from time rounded off the scoring in a game that could leave Solskjaer's job at risk.
Athletic's last home defeat was probably the most painful of them all as it lost 1-0 at home to newly promoted Cadiz on Thursday despite playing against nine men for almost half an hour. The loss again highlighted the lack of attacking ideas under coach Gaizka Garitano and although there are obvious weaknesses to the squad, many think a more aggressive coach could get more out of it.