How to advertise a boxing match in Guadalajara

Hearing the theme song from Rocky, I turned around to see a billboard truck plastered with oversized photos of gloved fighters barreling down the street. Attached to the truck was a trailer, on which was mounted a giant plexiglass terrarium housing a faux boxing ring. Inside there were two skinny adolescents costumed as boxers, along with a young lady wearing a "sexy referee" outfit. Both boxers were definitely on the ropes; the truck was swerving madly in and out of traffic and none of the three could keep their footing.