Abdou Diallo was sent off for a second yellow cards after 65 minutes and Juan Bernat limped off the pitch in the 85th minute, which forced Tuchel's side to have to play with nine men for the last 10 minutes.
The Baggies opened the scoring thanks to new signing Grady Diangana in the 10th minute, but Calvert-Lewin leveled with a back heel that was given after consultation with VAR.
Al Duhail opened the scoring in the 12th minute as Abdullah Al Ahrak cut inside from the right flank and unleashed a powerful drive from 25 yards that nestled into the roof of Adel Al Hosani's net.
"It never occurred to me that I would leap out to 8.36m. Huang did a great job today, it motivated me too," the Asian champion said.
The two sides meet again on the same ground on Thursday.
The BWF is looking into possible alternative dates to reschedule the world men's and women's team championship, but not before 2021.
"What happened was a conflict between Messi and the club. I have spoken to Messi and we are carrying on as normal," said the Barca boss. Enditem
The club, owned by Chinese businessman Jiang Lizhang, qualified for Europe for the first time in their history by finishing seventh last season, but their task is made more difficult with qualification decided over one game rather than over two legs as in previous campaigns, with the COVID-19 pandemic leading to a compressed calendar.
The hosts almost made it four moments later but Matthias Ginter hacked Felix Passlack's shot off the goal line.
Forward Serginho restored Jorge Wilstermann's advantage with a 56th-minute strike but Alves pulled his team level again with a smart finish after combining with Fabio Luciano.
In a statement, the Beijing Ducks said the club had kept good communication with Lin and relevant parties, and had reached an agreement to extend Lin's contract before the California-born star's decision to leave.