Saturday night during the Floyd Mayweather versus Canelo Alvarez boxing match in Las Vegas, fans chanting “U-S-A” appeared to have been booed.

USA Today documented the incident in their “round-by-round” coverage of the fight.

“Alvarez appears to be growing frustrated. Chants of “U-S-A” broke out, as the Mexican contingent booed in reply,” said the paper.

Alvarez, who lost the fight, is from Mexico.

Sports Illustrated also noted the incident in their live blog, but portrayed it in a different light.

“A U-S-A chant rings from the rafters. Floyd moving around the ring. Jabs again. Tags Canelo with a right hand as Canelo charges in. Canelo still throwing. Crowd boos a little,” wrote Sports Illustrated.

You can hear the chant break out at the two-minute mark here:

Now there’s always the possibility the “Mexican contingent,” as USA Today put it, was booing Alvarez’s poor performance. But what do you think? Was it the chant or the boxer that were being booed?

This story has been updated.

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