A solid Barcelona side were held to a 1 - 1 by Spanish side Celta De Vigo in their Copa Del Rey round of 16 first leg clash at the Balaidos on Thursday, January 4.
Ernesto Valverde's men came into their first game of 2018 on a high note having defeated Real Madrid in El Clasico just before Christmas.
Youngster Arniaz put the Catalans in the 15th minute as he converted Andre Gomes' low cross but Sisto put his side level in the 31st minute.
The Dane found Iago Aspas who teed up Lobtka but the effort is blocked and meets Aspas again whose effort hit the post and met Sisto who converted into an enpty net.
Celta Vigo edged past Eibar in the last round of the competition, recording a 3-1 aggregate win while Barcelona eased past Real Murcia in the last round, winning by a margin of eight goals over the course of the tie.
Ernesto Valverde named a strong side with the only notable changes being Jasper Cillesen in goal for Marc Ter Stegen, Andre Gomes for Andres Iniesta, Jose Arniaz for Lionel Messi and Lucas Digne for Jordi Alba.
Luis Suarez, Paulinho, Sergio Busquests, Gerard Pique and Nelson Semedo all started the game.
Barcelona will now welcome Carlos Unzue's side to the Camp Nou for the second leg of the tie.
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