updated 08/25/2008 AT 12:00 PM ET
•originally published 08/25/2008 AT 2:15 PM ET
“She was a great leader for a TV show I did with her and she can literally do anything. So she can certainly run a family,” Cooper told PEOPLE at the U.S. Open Heineken Premium Light players kick-off party in New York on Friday. “She will have no problems having two kids.”
Cooper, 33, who also costars with Affleck in the upcoming film He s Just Not That Into You, said the couple has what it takes to be “perfect” parents of a growing brood.
“She s wonderful and a genuine good person. She has all the qualities in being the perfect mom – very sweet and loving.”
Garner and Affleck are already parents to daughter Violet, 2.
And, Cooper added, “Ben is a fantastic guy. I loved working with him and he s a great dad. They will be very blessed.”