The Togo hitman sparked a sizzling return from two-nil down as the Gunners won in thrilling fashion.
He added: "We always create a lot of chances and don't always score all of them.
"But it's difficult to complain when you score three goals. Manu came good in the second half.
"To keep a guy like him quiet for 90 minutes you need some strength. Slowly his physical power took over the match."