Brentford play Fulham on Tuesday for the chance to return to the English top flight for the first time in 73 years – and earn about £160m in the process.
The west London rivals, separated by just four miles, meet in the Championship play-off final at Wembley.
Fulham could seal an immediate return to the Premier League.
Victory in the match, often dubbed the richest game in football, would be worth £135m to Fulham and about £160m to Brentford over the next three years.
Brentford finished third in the table, one place above Fulham on goal difference, and won both league meetings during the regular campaign.
If they fail to win, the Bees will have taken part in more unsuccessful play-off campaigns in the English Football League than any other club, with this their ninth attempt.