The Mets transferred Holmes (fibula) from the 15-day injured list to the 60-day IL on Tuesday.
The right-hander was recently shut down from all activities for 6-to-8 weeks due to a fractured right fibula, so it's hardly a surprise he's been moved to the 60-day IL. Holmes is expected to require about a month to build back up to game readiness once fully recovered, so he'll likely be sidelined until at least mid-August.