Lionel Messi has been so important for Barcelona and for Argentina over the past decade that supporters of both teams will often have wondered what life will be like when the star man retires.
Over the past week both sets of fans were shown a glimpse of football without Messi and it wasn't pretty.
Barcelona struggled in the first hour of their match against Sevilla with the No.10 on the bench.
They were two goals down and it wasn't until he was substituted on that they started to seriously trouble the Andalusian side's defence, eventually getting two late goals, with Messi scoring the equaliser himself.
This wasn't an isolated incident as Barcelona have struggled at other points this season when Messi has been absent, such as against Espanyol in LaLiga or against Celta Vigo in the Copa del Rey.
Argentina know this feeling all too well, having really struggled during the period in which Messi had temporarily retired from international duty and having been annihilated by Spain in a 6-1 defeat last midweek, when the forward was sat injured in the stands.