"It was our first international tournament and I am happy with this win," Cerezo's Brazilian coach Levir Culpi told reporters. "This win has a significant meaning as this is now in our club history.
"But I am not satisfied with the scoreline, we should have scored more. To get through the group stage, we may come up with a situation that involves goal difference."
Elsewhere, last year's runners-up Zob Ahan rebounded from a poor start to kick-off their Group D campaign with a 2-1 home win over Emirates.
"I confess that we didn't play well enough in the opening half, although we created some chances," Zob coach Mansour Ebrahimzadeh said.
"Emirates gradually tired in the second-half and we took advantage of their lack of strength. We got better after the break and we can get better game by game."
