Rooney goes head to head with Fernando Torres, Didier Drogba, Nicolas Anelka and Saloman Kalou in Wednesday's Champions League quarter-final having been previously linked with a big-money move from Manchester United to Chelsea.
Ancelotti said: "He's a fantastic player, I like him - but I have four fantastic strikers.
"You don't lose that ability as a goalscorer. You may have moments, but it comes back.
"They've had a difficult time because they've not scored a lot, but I'm sure they will and I don't want to swap them with anybody.
"With Anelka, Drogba, Kalou and Torres, we have options. They may not have scored, but the team have put in fantastic performances and fortunately, we didn't need their goals."