As Vieira recalls, it was just like that with Henry when Arsenal were ruling the roost, and whilst the players are very different in style, their overall impact was the same.
"Carlos is as good as Thierry Henry," said the veteran midfielder.
"They are different players but when you want to win trophies you need a striker who can score 20 to 25 goals a season.
"City have that type of player in Carlos. He is someone who can win you games. Even if you don't play well you know he will create a chance by himself and score it.
"If you want to win the championship or/and FA Cup, you need players like that."