The Argentina hotshot had been outstandingly subdued for a lot of of the match, showing a touch off the pace, however he created a violent 25-yard effort within the second half to confirm he finishes the sixth consecutive calendar year with a minimum of half a century of goals.
Alaves unbroken Barca cornered for under fourteen minutes, as Antoine Griezmann scored his fourth goal in seven matches across all competitions, and Arturo Vidal doubled their lead with a fierce strike simply before half-time.
The guests did hit back through Pere pons Varolii early within the half, giving them encouragement, however Messi effectively concluded their hopes along with his wondrous strike and Luis Suarez – who had found out the primary 3 goals – deservedly got here on the act late on from a controversial penalty.
The warning signs were there too soon for Alaves, as Messi had a goal disallowed within the tenth minute as a VAR review known him to possess strayed marginally offside .
But with their next move, Barca opened the grading – Griezmann inserting a right-footed effort into the bottom-right corner from the sting of the box following Suarez’s lay off.
Vidal was equally decisive late within the half, receiving Suarez’s pass and blasting an emphatic strike in across goal.
Alaves began the playing period bright and got themselves a lifeline through Pons’ powerful header, effort Marc-Andre ter Stegen no probability once incoming late to satisfy Ruben Duarte’s cross.
But Messi turned on the design twenty one minutes from time once lashing in from virtually thirty yards despite being on the face of it encircled.
And the glorious Suarez rounded off the grading before long once, changing from twelve yards once a var review deemed Martin Aguirregabiria to possess handled the Uruguayan’s previous header.