Strikes from Saul Niguez and Diego Costa kept Atletico Madrid's momentum rolling ahead of their trip to the Nou Camp, beating Alaves 2-0 on Saturday.
Atleti are unbeaten since league action restarted, extending to 12 games without a loss in all competitions.
Saul's first-half header handed Atleti the lead before Costa doubled the advantage with a cooly taken penalty, before Joselu copied the former Chelsea man with an expertly struck spot-kick.
Diego Costa got on the scoresheet as Atletico Madrid beat Alaves 2-1 on Saturday night
Diego Simeone's side face league leaders Barcelona on Tuesday after the Catalans slipped up with a 2-2 draw against Celta Vigo on Saturday.