The Internet isn't big enough for two Old Spice guys, challenger Fabio says. The Italian muscleman has declared himself the new Old Spice guy on the brand's YouTube channel and challenged old Old Spice guy Isaiah Mustafa to an online duel, Mashable reports. Former NFL player Mustafa responded yesterday that he's aware of "a certain man with hair who’s been using a very harsh and accented vernacular” and he has accepted the "Mano a mano en el baño" challenge. Throwdown is at high noon (EST) today. Stay tuned.