I watched the match vs everton on tv (im from malaysia) and the camera in the second half focused towards the liverpool bench.
Though there was no sound, you an actually see Rafa mouthing (or rather screaming his lungs out) to mellor. Rafa looked tense as I think he was asking mellor to drop back/pull back by moving his hands towards his (Rafa's chest) but apparently mellor just ignored him.
After a while, I think rafa got fed up and started pointing his finger towards his own head, probably indicating/asking mellor to use his head and think...it was hilarious!!!
He then sat down and started complaining to pako...you could tell rafa was absolutely ******..and the best thing was pako's reaction..he just smiled and laugh..poor benitez!!
I bet he pulled mellor aside after the match to have a word with him..
BTW: I thought that mellor had a pretty good game (6/10)