On the cover: Inflammatory lesions in injured skeletal muscle contain large numbers of macrophages that express both F4/80 (green) and CCR2 (red). A macrophage-targeted mutation of Ppard did not diminish macrophage acquisition of an M2-biased phenotype in regenerative muscle, but did slow CCR2-mediated chemotaxis of macrophages and also slowed muscle revascularization. Welc, S. S., M. Wehling-Henricks, J. Antoun, T. T. Ha, I. Tous, and J. G. Tidball. 2020. Differential effects of myeloid cell PPARδ and IL-10 in regulating macrophage recruitment, phenotype, and regeneration following acute muscle injury. J. Immunol. 205: 1664–1677.