FC Barcelona's Neymar, right, poses with his son Davi Lucca, left front, next to his teammate Lionel Messi, left, and other children prior of the Spanish La Liga soccer match between FC Barcelona and Athletic Bilbao at the Camp Nou in Barcelona, Spain, Saturday, Feb. 3, 2017 Pic/AP

Holders Barcelona have a fourth consecutive Copa del Rey final in sight when Atletico Madrid visit the Camp Nou on Tuesday with the daunting task over overturning a 2-1 semi-final, first leg deficit.