The former Liverpool and Real Madrid star has already scored twice in two pre-season friendly games for United.
Ferdinand said: “He is one of those players you might not see for 90 minutes but in time added on, he will score a goal.
“Those are the type of players you need to win things.
“It is great to have him in our squad because he is such a good player and a fantastic lad to have around.
“Fingers crossed he can have an injury free season and score some goals for us.”
