Masked thieves broke into Burton Albion's Pirelli Stadium and stole valuables belonging to players and equipment before defacing replica shirts.
The three intruders, wearing hoodies, masks and balaclavas, broke into the tunnel area at the League One club's stadium between 9.30pm and 9.50pm on Sunday evening.
CCTV footage showed the trio rummaging through crates of kit before they decided to write their initials on a Burton home shirt left out for players to sign.
They were later picked up by cameras strolling across the pitch before climbing over a metal fence and leaving the stadium.
Burton said 'valuable items of first team players' belongings and equipment were stolen from the tunnel area of the stadium following the squad's return from Stevenage. Signed merchandise was also defaced.'
🚨 APPEAL – STADIUM BREAK IN
Valuable items were stolen from the Pirelli Stadium on Sunday night between 9.30pm-9.50pm.
If you can help with any information identifying the persons in the video below, please contact hr@burtonalbionfc.co.uk
Read more info here 👉… pic.twitter.com/U3TCS7dhuh
Masked thieves broke into Burton Albion's Pirelli Stadium on Sunday night and stole equipment and valuables belonging to the players
The trio, wearing masks and balaclavas, broke into the tunnel area on Sunday evening
They decided to deface Burton shirts left out for the players to sign with their own initials
They have appealed to the general public for help in identifying the individuals responsible.
Pirelli Stadium bar manager Ben Robinson told ITV News: 'The things they've taken - it's not as if they can make any money from it. They've not stolen anything they can really sell on.
'For me, it's a bit more personal, and pointless. They're obviously not very nice people. They've got no respect for the club and people in general.'
The Brewers had boosted their League One survival chances with a 2-1 win at Stevenage on Saturday.
However, Tuesday night's 2-1 home loss to Cheltenham Town left them sitting just one place and two points above the relegation zone.
The thieves were then seen walking across the Pirelli Stadium pitch before exiting the ground
CCTV footage caught them walking away from the stadium after scaling a metal fence
Cheltenham, the team immediately below them, also still have a game in hand.
Burton play at home to Reading this Saturday as they look to secure their third-tier safety.
Burton have asked anybody with information to contact hr@burtonalbionfc.co.uk in confidence.