As Charlton slump to the bottom of the Championship following a damaging 1-0 home defeat to relegation rivals Bristol City, supporters have stepped up their campaign against the owners.

Members of Card – Campaign Against Roland Duchatelet – have paid for a billboard near the ground that plays on the heritage of the club.

The poster features an image of a young supporter alongside the slogan “Here before you and here long after you’ve gone”.

Phil Reeks is pictured as a five-year-old in 1993.

“The photo on the billboard was taken on my first visit to The Valley,” said Phil, now 28, from Greenhithe. “Since then I have visited hundreds of times, and I am sure I will go hundreds more – but not under the current owners.

“I am taking a leave of absence and only attending away games. That’s because, like many others, I will not fund this mad and selfish experiment.

“We’re bottom of the league but it’s not about results. It’s about the mistreatment of staff, the abject player recruitment policy, the same mistakes being repeated again and again.

“I’ve had roughly 12 season tickets in various places around the Covered End, but I don’t currently have a season ticket. Even the club has admitted that 3,000 of its season-ticket holders aren’t currently attending games and it’s doing nothing to win those fans back.”

Background Charlton fans plan 'flash' protests in campaign to oust club owners

Card’s guerilla protests will continue on Saturday (February 13) after the home match against Cardiff City, although the details are being kept secret until the day.

Manager Jose Riga was brought in to turn fortunes around but concedes it might be too late. He said: “It is a more difficult challenge to avoid relegation this time, but just because it is difficult, does not mean we cannot achieve it. I’m realistic, but I’m not a dreamer. There are a lot of games left to play.”

Meanwhile Portuguese defender Jorge Teixeria says the club has to stay in a positive frame of mind.

He told the club’s website : “There are a lot of games until the end of the season and many things can still happen. We have to fight as hard as we can and try to win the most points that we can.

“It is not a good situation and some players may lack a bit of confidence but the coach is trying to get that back and we hope that in the future we can do better and get more points.”