The off contract LA Galaxy striker has initially joined Milan to the end of this season.
“I think that Ibrahimovic is a good signing for Milan. He is a player who has character, who will step on to the field not just to participate, but to win. That acts as extra motivation for the others," Capello told Rai 2 show Dribbling.
“Obviously, as he hasn't played for months, he'll struggle to get into shape quickly, but has more quality than any of his teammates."
It remains to be seen whether Ibrahimovic will play alongside Krzysztof Piatek or Rafael Leao.
“Ibrahimovic has this great capacity for making his teammates play better. Some players scored lots of goals when they were alongside him, then struggled after he left. I am above all talking about midfielders who push up from deep to go clear on goal."