Article Photos: 5 things to know about the Copa del Rey 1/8

Barcelona's Francesc Fabregas, right, is tackled by Athletic Bilbao's Andoni Iraola during their Spanish League soccer match, at San Mames stadium in Bilbao, Spain, Sunday, Dec. 1, 2013. F.C. Barcelona lost the match 1-0. F.C. Barcelona lost the match 1-0.  (AP Photo/Alvaro Barrientos)