While USA and Mexico battled it out on the Daikin Park diamond in Houston, some of their fans were duking it out in the venue's stands.

A chaotic brawl broke out between fans in the stands at Daikin Park during Team USA's 5-3 victory over Mexico in Pool B play ...

A fight between USA and Mexico fans broke out in the stands during the World Baseball Classic game at Daikin Park in Houston.

There was a BRAWL at the WBC, but it wasn't on the field ... Team USA and Mexico fans clashed in the stands, and things got violent ...