Metallicities and radial velocities of Sgr members. Bottom left panel: Radial velocities vs. spectroscopic metallicities for Sgr stars from APOGEE DR17 (grey circles), from PIGS/AAT (open coral circles), from Minelli et al. (2023, small black circles), from Hansen et al. (2018, black circles), from Chiti & Frebel (2019) and Chiti et al. (2020) with black squares, and from this work (blue circles). APOGEE DR17 stars have been selected imposing a S/N > 70 and to be spatially and kinematically in the core of the system. Top panel: Histogram of the radial velocities. Bottom right panel: Histogram of the metallicities.