 Male meiosis relies on canonical centrosomes for spindle formation, but how this differs from a centrosome or site meiosis is unclear. Here they show that spindle formation in sperm relies on DYNLRB2, similar to the activity of DYNLRB1 in mitotic cells. This article was offered by Shu Wen-Hee, John P. Gillies, Juliana Elzong, and others.