Caffeine use or napping to enhance repeated sprint performance after partial sleep deprivation: Why not both? - Romdhani, M.; Souissi, N.; Moussa-Chamari, I.; Chaabouni, Y.; Mahdouani, K.; Sahnoun, Z.; Driss, T.; Chamari, K.; Hammouda, O. (International Journal of Sports Physiology and Performance, 2021)