Although the regular season will be over by then, the promotion/relegation play-offs to determine who will play in Ligue 1 next season, will be in full motion.
Lyon are currently rock-bottom of Ligue 1 having won just once so far this season. Their latest defeat came in Saturday's 3-2 defeat at Lens, just days after sacking boss Fabio Grosso, who only took charge of the club in September.
Despite a win at Rennes last month, it was hoped Les Gones would find some form to pull them away form the drop zone, but back-to-back defeats have killed any hopes of a shift in momentum.
The concert which sees the American pop star perform on her Eras Tour is scheduled to take place at the 59,000-seater stadium, on the assumption that Lyon would be sitting pretty in the Ligue 1 standings.
Instead, the seven-time French champions could be involved in the play-off if they improve upon their current position and finish the season in 16th place.
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The possible scenario would see Lyon face a two-legged play-off with the promotion play-off winner between Ligue 2's third, fourth and fifth-placed sides.
The second leg would take place at the Groupama Stadium on June 2 - the day Swift is due to take to the stage.
The 12-time Grammy award winning artist is set to perform in front of a packed crowd in Lyon in what will generate much-needed funds for the club, who have complete ownership of the stadium.
Therefore, club chiefs could push to either switch the scheduling of the play-off so that they place the home leg first or switch to a neutral stadium for the second leg.
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Lyon's precarious position means all situations including direct relegation are on the table and their attempts to pull away from the mire have not been helped by managerial mayhem.
The club are currently without a manager but early signs suggest they could be set to appoint former boss Bruno Genesio who would become their third manager already this season.
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After last season's seventh-placed finish in Ligue 1, fans were not expecting a complete fall from grace as has unfolded this term.
Ex-Arsenal striker Alexandre Lacazette has failed to replicate his 27-goal haul from 2022/23.
Also among the ranks is former Liverpool defender Dejan Lovren who has managed just five appearances this term.
It has been a disastrous few years for Lyon who were Champions League semi-finalists just three-years ago, beating Manchester City in the quarter-finals.
Relegation would be a monumental moment for a club that has produced some of European football's finest talents.
But just like their bitter rivals Saint-Etienne who were relegated to Ligue 2 in 2022, Lyon are in grave danger of dropping out of the top-flight.