FC Barcelona will be looking to overturn a 1-2 deficit tomorrow and book their place in the quarter finals of the 2016-17 Copa del Rey when they welcome Basque Country giants, Athletic Bilbao to the Camp Nou. The Blaugrana slumped to defeat in a controversial, ill-tempered match a week ago in which the referee issued two red cards and arguably missed a couple of clear-cut penalty decisions, but leaving the controversy behind for a moment, there can be no denying that much like the referees, Barcelona must also improve their consistency and focus over the course of the 90 minutes.