Messi netted twice in two minutes inside the opening quarter of an hour, steering home from two Alba crosses, before he returned the favour with a sumptuous pass that allowed the full-back to score his second goal of the season.
Luis Suarez added the fourth before half-time after a terrible back-pass by Pione Sisto left him with only the goalkeeper to beat, and Ivan Rakitic headed home from Ousmane Dembele's corner late on. The Camp Nou side have won the Copa del Rey more times than any other club in Spain and on this basis, they are the favourites to win another. The Brazil midfielder will make his debut after he recovers from a right leg muscle injury.
O'Neill and Keane in line to make Stoke move
Those comments were aired in the immediate aftermath of Ireland's hammering at the hands of Denmark in the November World Cup play-off.
15' GOAL! Barcelona 2-0 Celta Vigo (3-1 on aggregate): Barcelona and Messi have scored a quick-fire second goal!
Barcelona's all-time scoring leader swept Alba's cross past Sergio Alvarez despite the goalkeeper getting a hand to the ball, and he followed up by firing home after another exchange of passes with Alba.
"The connection between Messi and Alba is nothing new, it has been working for years", Valverde said. A lovely piece of skill nearly laid on a goal for Iniesta before he was withdrawn just before the hour mark.
Wild rallies past Blackhawks after 'embarrassing' start
For the Wild to be down just one goal after one period to the Blackhawks was a surprise - or as Boudreau put it, "amazing". Kane has been named to the All-Star team every season in which a game was played since his sophomore season of 2008-09.
The Catalans were then held to a 1-1 draw by Juan Carlos Unzue's side as Pione Sixto cancelled out the goal scored by Barcelona B forward Jose Arnaiz in the first half.
High-flying Valencia will have been pleased to draw Alaves, the lowest-placed team remaining in the Copa del Rey, although the latter will be in high spirits after beating Formentera 5-1 on aggregate in the last round.
Sexta-feria tem possibilidade de pancadas de chuva e trovoada isoladas
Sistema: Sistema de alta pressão no RS e no Oeste de SC, com convecção isolada à tarde no Oeste e Meio Oeste. Nas demais regiões, predomínio de nuvens e chuva fraca a qualquer hora do dia, especialmente no Litoral.