Has anyone ever seen a Leopard Wrasse cleaning another fish?

Hey guys! I just tried to get a picture of it but as soon as I go up to the tank they think they are getting fed so they stopped, but I swear my Leopard Wrasse was just cleaning my Sailfin Blenny. The Blenny was just hovering mid-water column while my female Leopard Wrasse was picking stuff off him. I just thought that type of behavior was limited to Cleaner Wrasses. I'm stumped.