An MRI on Eflin's elbow revealed no ligament damage, Todd Zolecki of MLB.com reports.
This is a breath of relief for the Phillies organization, as now they'll simply be able to wait out the injury without any surgery or extensive rehab. The plan as of now is to shut Eflin down for five days and have him resume throwing next week, after which a firmer timetable for his return should come forth.