A search gave me this:
In Polquin’s words:
I don’t know understand why power cleans and deadlifts are considered leg exercises instead of back exercises. Based on your principles, if you were incorporating these movements into your routine, you’d be doing a chest and a back movement on day one, and then doing cleans or deadlifts on the next day. Isn’t that working the back two days in a row? If so, should I change my split?
A: In deadlifts and in power cleans, the quads, glutes, and hamstrings are the prime movers. Hence, these movements are typically done on leg day. Back day is usually designed to train all the muscles of the upper back which are lateral to the muscles that extend the spine (i.e. erector spinae), laterally rotate it (i.e. multi-fidi), and laterally bend it (i.e. quadratus lumborum).
In other words, there’s really no reason to change your split.
-So throw in cleans on leg day one