The mum of one of the Burnley fans who organised the White Lives Matter banner is reportedly so ashamed of her son's actions that she can't face going to work.
A plane was flown over the Etihad during Monday's 5-0 defeat against Manchester City, shortly after players had taken the knee in support of the Black Lives Matter movement.
Jake Hepple claimed responsibility for the offensive banner and the Daily Mail claim Mark Hamer was also among the organisers.
Hamer, 36 was jailed for three years and eight months in 2011 for a clash with rival Blackburn supporters.
His dad, George, claims his son's behaviour has left his wife unable to go to work due to the backlash.
The 66-year-old said: "It's not good. It wasn't great for her before this. I didn't have anything to do with this."
The club statement made it clear the perpetrators were not welcome at Turf Moor and would be banned for life if identified.
Burnley CEO Neil Hart said: "We believe we know who is responsible for this. We will be issuing life bans to those individuals, 100 per cent."
Hepple shared a video of the incident on to his Facebook page on Tuesday.
He wrote: "I'd like to take this time to apologise .. TO ABSOLUTELY F ** NOBODY!
"It's now apparently racist to say white lives matter."
Burnley manager Sean Dyche condemned the stunt and insisted it did not represent the club.
"I didn't realise what had gone at the beginning," said Dyche.
"But it was when I got in the dressing room afterwards that the lads mentioned it and were on their phones with what had gone on.
"I heard a noise buzzing around but didn't know what it was about.
”The club has sent a statement out and I can only support that statement, it is unacceptable.
”I don't think you can judge the club or the whole town on that, but it is unacceptable.
”As a club we can only apologise. I don't know what we could have done about it, I have only just learned about it, but obviously it was unacceptable."
