Rankings are widely regarded as particularly well-suited for capturing the public eye, which is considered a reason why they have become so ubiquitous. However, we know surprisingly little about how rankings direct media attention, as well as how media in turn shape and help sustain careers of specific rankings in the public over longer periods of time. To advance our understanding of the discursive dynamics at the intersection of rankings and the press, this study examines the media career of Global Slavery Index by analyzing 361 newspaper and magazine articles, published between the release of index's inaugural edition in 2013 and until the end of 2019. To interpret the media coverage, the study draws attention to the distinctive properties of the Global Slavery Index, in particular its universality, highly rationalized character, and a pledge to spotlight violation of the global moral order. The longitudinal examination of the media coverage points to the following properties of the index as having shaped and helped sustain its career in the public: (1) repeated publication; (2) broad conceptualization of modern slavery; and the construction thereof as (3) a measurable global burden. These properties further allowed for (a) the construction of countries, organizations, and individuals as morally responsible for the said global burden, as well as for (b) the discursive linking of local and situational concerns with global narratives.