Don’t get Tapatio champion boxer Saul “Canelo” Alvarez mad.

That’s what U.K. challenger Billy Jo Saunders found out the hard way, after he spent the week prior to Saturday’s big fight in Dallas riling up Mexico’s ace pugilist. A devastating upper cut in the eighth round swiftly ended the British fighter’s resistance, forcing his corner to throw in the towel. Rushed to the hospital, it was confirmed that Saunders had suffered a fractured eye socket and broken cheek bone. He was successfully operated on.