Abdullah Al Zori's second half goal cancelled out Mohsine Moutouali's early strike as Al Hilal and Al Rayyan played out a 1-1 draw on Matchday Three of the 2018 AFC Champions League Group D.
The visitors came off the blocks racing and found the back of the net just three minutes into the game after captain Rodrigo Tabata's pass found Moutouali who fired a powerful strike from outside the box that went in off the post to put Al Rayyan in front.
Al Hilal regrouped quickly and came close to levelling the score in the ninth minute when Achraf Bencharki's close range shot from a narrow angle was blocked by defender Ahmed Yasser.
Al Rayyan thought they had doubled their lead just before the half hour mark when Abderazak Hamdallah beat the goalkeeper, only to see his goal ruled out for offside.
The Saudi side started the second half brighter and in the 58th minute, Bencharki sent an intelligent pass into the box for overlapping left-back Al Zori who struck with venom into the top right corner to earn his side a point on the night.
The 2017 runners-up remain without a win in the group and will next travel to Doha to face Al Rayyan, who have now drawn all their three games.