 Murphy has been outspoken about several other of his rivals , criticising them for having too many toilet breaks and complaining about table conditions among other things . Murphy also makes collective criticisms of his fellow professionals for not attending events and has branded other players ' concerns over prize money as a joke . Murphy 's harshest criticism has been reserved for Ronnie O 'Sullivan . Murphy highlights what he perceives to be O 'Sullivan 's lack of professionalism . 
