BARCELONA - Barcelona ended a three-game series of bad-tempered derbies against Espanyol on top by sealing their place in the Copa del Rey quarter-finals 6-1 on aggregate courtesy of a 2-0 win at Cornella-El Prat on Wednesday. Fresh from picking up his record fifth Ballon d'Or, Lionel Messi was once again Barca's inspiration as he brilliantly picked out Munir El Haddadi to open the scoring before the youngster tapped home his second of the night late on. There was less aggression on the field than in the previous two meetings between the sides in the past 10 days, however, Espanyol could be punished for offensive banners towards Colombian popstar Shakira and Luis Suarez. Athletic Bilbao, Celta Vigo and Las Palmas also booked their place in the last eight to join Sevilla and Mirandes.