The video, which questioned Messi Junior's allegiances (in a funny way), went viral on the social forums.
Messi, who was left out of the squad for Barca's first home game against Betis due to a calf injury, watched the clash from the stands with his elder son Thiago and Mateo. His teammate Luis Suarez, who is nursing a calf injury, was also there with his son.
Before being corrected by Suarez, Mateo frivolously celebrated after Nabil Fekir scored the opener for Betis.
Suarez and Messi laughed on the situation but later on reminded Mateo of his loyalty.
Watch the video:
Lionel Messi’s son, Mateo, accidentally celebrated Real Betis taking the lead against Barcelona yesterday 😂