The decisive moment came five minutes into the second half when Saudi midfielder Salem Al-Dawsari scored from close range, capitalising on a rebound after Chinese goalkeeper Wang Dalei blocked an initial shot.
China’s task became even more challenging just before the break when Lin Liangming was shown a red card for a reckless kick to the face of Saudi defender Hassan Kadish.
The incident resulted in a lengthy stoppage as Kadish received treatment before being carried off the field on a stretcher.
Despite dominating possession, the hosts were unable to convert their chances, with a first-half goal by Faisel Al-Ghamdi ruled out by video footage for handball, further compounding their frustrations.
After seven matches, China remains at the bottom of Group C with just six points.
They will next take on Australia at home on Tuesday and will look to turn their fortunes around. (Xinhua)
