The defender left this summer to become player-manager of Anderlecht.
“Vincent decided to go to Belgium. We have another alternative - other players and I'm thinking of them," Guardiola said.
And when asked whether the veteran captain's influence was being missed around the squad, he said: “No. This group is extraordinary, the group is incredible.
“They take care of themselves perfectly and are an incredible unit. Of course Vincent is/was an important player and person for this club but he decided to go to Belgium and we have other incredible players to do the job they have to do."