GO:0014835

The process in which a relatively unspecialized satellite cell acquires specialized features of a myoblast. This occurs as part of skeletal muscle regeneration. A myoblast is a mononucleate cell type that, by fusion with other myoblasts, gives rise to the myotubes that eventually develop into skeletal muscle fibers. [CL:0000056, GOC:ef, GOC:mtg_muscle, PMID:16607119]