Squad depth is a beautiful thing on paper. You form a strong group of players so they can be used in key situations. Maybe an important game is coming in just a few days, and you need your replacements to do their job and win a game for you before that key one comes around.
It is time for Barcelona to prove they have squad depth. The UEFA Champions League knockout stages start next week, with the Round of 16 first leg against Arsenal, in London, happening on Tuesday. This Saturday, just three days away from that all-important match, the Blaugrana are on the road for a La Liga fixture against Las Palmas.