Barcelona are at risk of a last-16 exit from the Copa del Rey after a 2-1 first-leg loss at Levante left their trophy defence in doubt.
Memories of the 5-4 thriller at Ciutat de Valencia last season that cost Ernesto Valverde's men an unbeaten LaLiga campaign came flooding back during an end-to-end first half in which Levante thrived.
Jeison Murillo and Chumi, afforded opportunities amid a raft of Barca changes, floundered at the heart of defence and the hosts took full advantage, storming to an early two-goal advantage thanks to Erick Cabaco and Borja Mayoral.
The absence of Lionel Messi and Luis Suarez hampered the holders' hopes of extracting a result although they do have a goal to take back to Camp Nou on January 17 thanks to Philippe Coutinho's potentially pivotal 85th-minute penalty.