A Celtic timeline of tension amid Green Brigade battles with board over poppies, banners and break-ins

It's the long-running internal feud that feels is reaching the point of no return

Fed-up Celtic hit back in a hurry at the Green Brigade on Tuesday night as the club's patience with a highly influential section of their support nears its end. The ultras are already serving a ban for away games amid claims members broke into Celtic Park. And now they won't be allowed early access to stadium on a night they are urging fellow supporters to fly the flag of Palestine amid the harrowing violence raging in the Middle East. UEFA – who already have a direct hotline straight to Glasgow's east end to dish out fines – will take a dim view over a political protest under their umbrella.

Both represent the same colours, of course, but the Green Brigade and the Celtic board stand on opposite sides over multiple burning issues woven into the soul of the club. The ultras – housed in the club's standing section in 111 – have brought noise, colour and controversy since they were founded in 2006 but Peter Lawwell and other leading club figures have voiced major concerns.

Their mission statement pledged to bring back the noise but their actions have become a headache for Celtic hierarchy over a string of UEFA fines, controversial banners and concerns over conduct at away stadia in Scotland. But backers of the Green Brigade point to a group who maintain the working class ideals which founder Brother Walfrid's ethos was based on from wildly-successful food drives to charitable donations.

However, the club and ultras are on a collision course with observers braced for impact. Record Sport delves deeper to analyse the timeline of how the Premiership champions’ board and the ultras appear set for separation.

It's the summer of 2006 and Gordon