WASP-119 b discovery data: (top) the WASP-South light curve folded on the transit period. (Second panel) The binned WASP data with (offset) the follow-up transit light curves (ordered from top-to-bottom as in Table 1) together with the fitted MCMC model. (Third) The CORALIE radial velocities with the fitted model. Filled/open symbols denote data obtained before/after the upgrade to the CORALIE spectrograph, respectively. (Lowest) The bisector spans; the absence of any significant correlation with radial velocity is a check against transit mimics.