The Marlins transferred Hernandez (biceps) to the 60-day injured list Saturday, Jordan McPherson of the Miami Herald reports.
The move does not necessarily mark a setback in Hernandez's recovery, but rather an effort to free up a spot on the 40-man roster until the pitcher is ready to return. Hernandez has already begun his rehab and figures to be ready for activation in the near future, but this move means he will not be eligible to return until June 4 at the earliest.