Tottenham fans are planning a mass protest ahead of their home fixture against West Ham in the Premier League on Saturday.
The influential supporters' group Change For Tottenham is calling on fans to join a noisy and colourful in-stadium protest against the club's leadership and performances.
While the action will focus mostly on top-level issues concerning the board, there is also growing pressure on Thomas Frank after their 2-1 FA Cup exit to Aston Villa on Saturday in London. They sit 14th in the Premier League.
Spurs are now winless in seven games and their hopes of any silverware have been all but extinguished - unless they can pull off a miracle in the Champions League.
Change For Tottenham organise multiple protests last season against the board and particularly Daniel Levy, who left in September.
Their newest statement read: 'We have decided to take action on Saturday 17th January starting at 2pm before the West Ham game.
'There is growing frustration within the fan base surrounding the board's transfer strategy, clarity on the Director of Football role, our continuous injury crises season after season, recent results/performances on the pitch and extortionate ticket prices.
'We believe acting now will hopefully mean our voices are heard at such a pivotal time during the January transfer window.
'Our first team and squad needs serious investment, and after The Lewis Family Trust, Vinai Venkatesham and Fabio Paratici told supporters that they were ready to be ambitious and prioritise trophies after Daniel Levy stood down, all we ask as fans is that these promises are kept.
'We are meeting at 2pm on the corner of Park Lane and the High Road, outside the Corner Pin pub. Please bring (preferably yellow) banners, flags, scarves and your voices to make sure we are seen and heard.
'We will then head into the stadium at approx 2:25pm for a 2:30pm concourse meet and an in-stadium protest. We are meeting between entrances 20 and 21 by the balcony in front of block 254 to create as much atmosphere as possible.
'Yellow is our colour for change, so please wear, wave or hold as much yellow as possible before and during the game.
'Make sure you join us to ensure your voice is heard and play your part in Change for Tottenham.'
In October, the Lewis family confirmed a £100million injection of funds into Tottenham promised that there would be more to follow.
At that point, there were sat third in the Premier League and had only lost once in 11 games in all competitions.
The Lewises have taken renewed interest in the club since ousting Daniel Levy as chairman in September. They have resisted takeover from three different consortiums, from Saudi Arabia, China and the USA.
Vivienne, the daughter of the club's original billionaire patriarch Joe Lewis, has taken the keenest interest and has been present at games, as have her brother Charles and son-in-law Nick Beucher.
Spurs fans staged multiple protests last campaign, including the biggest that Levy had faced for 24 years ahead of their match against Manchester United in February.
Their base season ticket price is among the most expensive in the league at £856 while their most expensive is £2,223, bested only by Fulham.
Despite overhauling their medical staff twice this year, they have again been plagued by injuries this season.
Meanwhile, co-sporting director Fabio Paratici is set to leave the club following the January transfer window, just four months after returning in an official capacity.