Leyton Orient's late manager Justin Edinburgh will be honoured by Cheltenham fans on the opening day of the season after their target for a memorial flag was reached in only five hours.
Orient host Cheltenham on 3 August in what will be their first match back in League Two and first competitive game since Edinburgh's death on 8 June.
More than £500 has been raised on an online crowdfunding page for a giant flag with an image of Edinburgh and the words "he made you dream again".
Two Cheltenham Town fans' groups - 1887 Red Army and Robins Trust - said they "want to create a fitting tribute" on what is expected to be a "hugely difficult and emotional day for Orient fans".
The flag will measure 24 feet x 12 feet (approximately 7.3m x 3.65m).
"We hope this tribute will show the love and empathy of the entire football community," they posted on the fundraising page.
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Former Tottenham defender Edinburgh, who guided Orient to the National League title in April, died at the age of 49 after suffering a cardiac arrest.
Additional money raised will go to the Justin Edinburgh 3 Foundation - a cause set up by his family.
The foundation, which is aiming to support a charity related to heart and brain health, will also be campaigning to change the law to ensure all health and fitness clubs across the United Kingdom are equipped with defibrillators.