Liverpool should sign a £15m rated midfielder who is similar to both Wataru Endo and Alexis Mac Allister. Even though Liverpool signed four midfielders last summer, it still feels like the club might invest in another midfielder this summer as well. Given how the season has panned out, it’s become glaringly obvious that Liverpool still need another more defensively minded midfielder. Especially if Arne Slot, who looks likely to become the club’s next manager, will play with a double pivot. That means Liverpool should be on the hunt for another midfielder this summer, and that midfielder could …