A rotor protection plate for mounting on an upper plate of a rotor body of a crusher, in particular a vertical shaft impact crusher, is provided. The rotor protection plate comprises a body having an inner face defining a guide slot that is operably arranged to be in register with a rotor tip block opening defined on the upper plate of the rotor body and spaced apart therefrom to allow for a rotor tip block to be partly inserted into the guide slot during removal of the rotor tip block from, or insertion of the rotor tip block into, the rotor body.