Top panel: CMD of NGC 6067 in Vista photometry. The green dots are data adopted from Alonso-Santiago et al. 2017, and the grey dots are data adopted from Peña Ramírez et al. 2021. The superimposed isochrones are models with the same parameters as in Figs. 8 and 9. Bottom panel: Rotational velocity of stars from the Alonso-Santiago et al. 2017 catalogue, superimposed with the predictions from isochrone models (solid lines show the evolution with K_S < 13 mag, and dotted lines show K_S > 13 mag). Only stars with precise v sin i and ξ are presented in this plot.