Police have reportedly launched an investigation after graffiti displaying the initials of Wolverhampton Wanderers' Black Country rivals West Bromwich Albion appeared at the League One outfit's training ground.
Wolves have been alerted to a video posted online of two men claiming that they will 'redecorate' the Compton complex by writing 'W.B.A Boing Boing' on the wall.
According to the Express & Star, one of the men in the video said, "welcome to your new indoor training centre," after the graffiti was complete.
Wolves spokesman Matt Grayson told the newspaper: "The artistic skills of these two morons obviously extends to self portraits because they pose quite readily for our extensive network of CCTV cameras at Compton. And they managed to splash themselves all over the internet.
"I'm sure they will be boing boing-ing down to the local police station in the not too distant future."
The police are said to be working with Wolves in a bid to find the perpetrators.