Rooney looked at ease when operating in a deeper role against Bulgaria who found it hard to contain the former Everton player.
Gerrard said: "Wayne showed why is one of the best players in the world because he can drop deep, link the midfield to the attack, set goals up and get into dangerous positions himself.
"Certainly, I wouldn't want to be facing him in the kind of form he was in the other evening. But it is important we are not distracted by anything, not just the issue with Wayne Rooney.
"I am expecting another big performance from him."