The former Brisbane Roar keeper landed a dream move from Melbourne Victory on a two year deal with League One side Norwich City in 2009.

But his UK career never recovered from the nightmare start. He conceded five goals before half-time and another two before the ref took mercy and blew for full-time.

After the thrashing in the opening match of the season, Theo – still known as Theoklitis then – never played another first team game for the Canaries.

Bryan Gunn, the coach who signed him, was sacked one game later and replaced by Paul Lambert, the Colchester boss who had smashed City 7-1

Lambert then vowed Theo would be gone by Christmas, but the Aussie eventually left the club "by mutual consent" in March 2010 to return to the A-League with Brisbane Roar.

Theo joined Roar under Ange Postecoglou and was a key part of the success the club enjoyed during the future Socceroos coach's dominating reign.

The keeper set a new Australian record for clean sheets, going 876 minutes without conceding a single goal, and winning the 2010/11 A-League Goalkeeper of the Year Award.

He later shortened his name from Theoklitos to Theo in 2012, but dismissed speculation it was to try to disassociate himself with the 7-1 shellacking.

"Around the football traps, I’ve always been known as Michael Theo so I just thought, why not make it official? It’s no big deal," he said at the time.

Melbourne-born Theo, 37, left Brisbane at the end of last season after eight years with the Queensland club.

Now Melbourne local Tom Greenaway has told BBC News that he found Theo's old City shirts on sale for $15 in an op shop in Melbourne.

The haul included two first team shirts and a training shirt with Theo's name on them.

"I pulled it out and what do you know, it's Michael Theoklitos," Greenaway told BBC Radio Norfolk.

"I didn't recognise that name at all, so I did a Google search on the spot and went, 'This is too good to be true!'

"When I realised he'd been involved in one of the lowest points in the history of the club, that's when I thought 'I just have to buy this kit... all of it'.

"I don't know what I'm going to do with it. I'd certainly like to chase up Michael now. I'm going to attempt to chase him up and get it signed."