While Lionel Messi was dazzling on the field on Sunday night, one of his supporters was throwing haymakers in a wild brawl in the stands ... and the fight was all captured on video.
The crazy scuffle happened at some point during Inter Miami's game against FC Dallas at Toyota Stadium in Frisco, Texas ... when one Lionel fan apparently got so enraged with some Dallas supporters, he decided to throw fists.
You can see in footage shot by a bystander, the man wearing Messi's Argentina No.