McIlroy knows as well as anyone how strong competition has become at the highest level .
McIlroy had won two majors by the age of 24 but then struggled after changing his equipment manufacturer in January and having to cope with legal distractions .
McIlroy , who had won two majors by the age of 24 but then struggled after changing his equipment manufacturer in January and having to cope with legal distractions , knows as well as anyone how strong competition has become at the highest level .