While the club denied any connection to financial reasons, media assume Szalai has become the second Bundesliga player to have been fired due to wage cut discussions.
Monday ends with Fulham looking for their first points at home to Aston Villa, before Liverpool entertain an Arsenal side that defeated them on penalties in the Community Shield at the end of August.
Bayern then reestablished control of the game, but Robert Lewandowski and Leroy Sane both had goals chalked off.
According to the schedule, Play-Ins through Semifinals will be held in the Shanghai Media Tech Studio from Sept. 25 to Oct. 25, and Finals will be held in the newly constructed Pudong Football Stadium on Oct. 31.
Wuhan once had a good chance to pull one back in the 43rd minute when midfielder Liu Yun sent an accurate cross in the penalty area, but forward Dong Xuesheng failed to touch the ball.
Against Sevilla, only three experienced players like Javi Martinez, Corentin Tolisso, and Jerome Boateng were left on the bench.
After losing a goal, Wuhan dominated goal possession for a long time but failed to convert. In the second half, Wuhan brought on five substitutes but showed little efficiency in its attacks. In the 86th minute, Marcao extended the lead for Hebei and nailed the game 2-0.
Wuhan ranked fifth with 16 points, only one point behind the fourth-placed Shijiangzhuang Ever Bright and two points behind the third-placed Hebei China fortune, while Chongqing sat sixth with 15 points before the match.
Having played for Juventus for four seasons, the 33-year-old joined Bayern Munich in 2015, before moving to Barcelona in 2018.
"It was a very cruel game, and it was regrettable that we failed," said Pang Li, Wuhan's coach, adding that the club will sum up the matches in the first phase and be prepared for the next phase.
Henan missed the chance to equalize in the 64th minute when Fernando Karanga's spot-kick was blocked by Guangzhou Evergrande goalkeeper Liu Dianzuo.