According to Moises Llorens of AS, the Madrid stadium had been mooted as a venue for the May 21 clash—which will move to May 22 if Sevilla reach the Europa League final—but the presence of The Boss has now ruled it out completely.
Barca qualified for the final after their semi-final thrashing of Valencia, while Sevilla comfortably won their last-four tie against Celta Vigo.
The Catalans were previously reported to have requested the match be played at the Bernabeu, with its 90,000-seat capacity a significant selling point, per AS (via Football Espana).
According to the Associated Press (via MailOnline), as the biggest neutral ground in Spain, it was seen as the ideal choice by both sides.
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Equally, Madrid's location in Spain—almost equidistant between Barcelona in the north-east and Seville in the south-west—made it an obvious venue.
However, Los Blancos were resistant to the idea of their archrivals, Barca, potentially winning significant silverware in their backyard, and Real fans chanted their displeasure at the plan during Saturday's 4-2 win over Athletic Club Bilbao, per Sport.
In one fell swoop, Springsteen has prevented any further controversy, as there is now no way the final can be played at the Bernabeu even if it is moved to May 22.
Per Football Espana's report, Atletico Madrid's Vicente Calderon Stadium and Valencia's Mestalla Stadium were both previously put forward as alternate venues, with the former now seeming the most likely option.