Filipino MMA fighters Kiko Matos and Baros Heisler don’t seem to like each other very much, and might just wind up killing each other before their official clash in Manila on June 25.

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During their weigh-in on Friday, Matos concealed a spray bottle full of urine behind his back. When the moment was right, he whipped it out and sprayed Heisler right in the face with it.

Conor McGregor, eat your heart out. THAT’s how you mess with your opponent’s head before a fight. You grab a spray bottle, take a fat piss in it, bring it to the weigh-in and blast your opponent in the face with it. The other guy’s probably been thinking about how he got sprayed in the face with piss 24/7 even since it happened. Some might even say Matos already won.

P.S. Lame comeback with the “you smell like shit! You eat shit!” line. I guess it’s hard to come up with good shit-talking when you’ve just been doused in another man’s piss.

To watch a great compilation of when MMA taunting goes wrong, click HERE.