United were 3-0 up after 6 minutes, but the Reading managed to hit two back, so the match ended 3-2.
Ferguson said: “Our side made the best start I’ve ever seen them make with three goals in the first six minutes.
“Reading’s first goal gave them a lifeline and then their balls into the box gave my defence a hard time.
“After they scored their second I thought it was going to extra time. It was going that way.”
