Celtic lost the game 3-2 in extra time

Alan Cloughley was caught by police at his home just days before the game on 21 May, which Celtic lost 3-2.

He claimed he copied and sold the briefs for �5 to help Celtic fans desperate not to miss out on the club's first European final in 33 years.

Cloughley, of Albert Drive, Glasgow, will be sentenced next month.

Appearing at Glasgow Sheriff Court on Monday, he admitted two breaches of the Trade Marks Act.

Police were made aware of supporters buying cut-price tickets days before the final.

These were serious actions which could have had major repercussions that evening Sheriff Deirdre MacNeill QC

Officers and Celtic Football Club warned fans against buying them as they attempted to find the source.

Acting on a tip-off, police raided Cloughley's home and seized 291 tickets and �300 in cash.

He claimed he bought a legitimate ticket and copied it to produce fakes, selling about 100 before being caught.

Cloughley, who works as a nightclub bouncer, carried out the scam using his home computer and specialist printing equipment he purchased over the internet.

'Security nightmare'

Gillian Mawdsley, prosecuting, said: "His actions provided a security nightmare for those involved in the planning of such a big occasion.

"At no time did he have the consent of football's governing bodies to reproduce these tickets."

Sheriff Deirdre MacNeill QC told Cloughley that the offence attracts a lengthy prison sentence.

"These were serious actions which could have had major repercussions that evening."

The case is thought to be the first successful conviction of its kind in Scotland to deal with counterfeiters.