Vandals have daubed graffiti on the entrance of Wolves training ground, painting the initials of Black Country rivals West Bromwich Albion.
Police are investigating the attack outside the club's facilities in Compton after a video by the perpetrators was posted on the internet.
The 46-second clip shows a man, who is not identifying himself, daubing 'W.B.A Boing Boing' along the gold painted wall, while another gives commentary on wanting to 'redecorate' the training ground.
During the filming he makes derogatory remarks and states: "Welcome to your new indoor training centre."
But while the pair laugh loudly at their actions during the shaky mobile phone footage, it is likely that their brazen attack could backfire.
Video of the attack. Note: Audio has been removed because of offensive language
The site is covered by CCTV cameras, and police are liaising with Wolves bosses so they can examine the footage in a bid to identify the pair.
Matt Grayson, spokesman for Wolves, today said: “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.
“But these individuals don’t represent the vast majority of honest decent Albion and Wolves fans who enjoy banter the way it should be- good natured.”
Supporters have taken to Facebook, where the clip is shown, to condemn whoever responsible as 'juvenile'.
One poster, Liam Wwfc, wrote: "You do realise that place is full of CCTV to protect players cars and the fact there a school there? Shows your intelligence."
The graffiti has been daubed on the 6ft high gold-coloured temporary surround fence to work being done to extend Wolves’ Compton training base as part of a £7m scheme to maintain the club’s Category One academy status.
Currently, St Edmunds Catholic Academy is being demolished to make way for an indoor dome.
The work is expected to be completed by next summer.
West Midlands Police spokeswoman Gina Lycett said officers had been made aware of the footage and were now investigating. The graffiti was discovered yesterday, and was removed today.
Do you know the identity of the vandals? Contact firstname.lastname@example.org