BARCELONA have a mountain to climb to retain their Copa del Rey title after slumping to a 2-1 home defeat in the first leg of their last-16 tie with Sevilla. Barca’s Copa del Rey success of last year was the first of a record-breaking six trophies they won in 2009 but Pep Guardiola’s men need to do it the hard way if they are to claim a 26th cup title this season after a much-changed side went down to a similarly...