The Reds placed Joe on the 10-day injured list Wednesday due to hand, foot and mouth disease.
The right-handed-hitting Joe had played fairly consistently against left-handed pitching since getting called up from Triple-A Louisville on May 10, so his bout with the illness helps explain why he was left out of the lineup against southpaw Carlos Rodon during Tuesday's 5-4 win. Joe's IL placement is retroactive to Sunday, but it's not clear if he'll be fully recovered from the ailment when he's first eligible to return July 2.