“We were very compact, very tidy, and we kept a clean sheet, but we have to do a little bit more,” Chiellini told Mediaset Premium.
“We have to help our strikers a little bit more even if we did create several chances in practice [against Sevilla].”
La Vecchia Signora next set foot on Champions League territory on September 27, when they travel to Croatia to face Dinamo Zagreb, who lost 3-0 to Olympique Lyonnais in their opener.
Before then, Juventus must take a trip to Inter in Serie A on Sunday evening.