Crystal Palace stands at the cusp of a historic achievement, marking the twilight of Oliver Glasner's transformative era.

The Austrian manager, whose tenure has brought unprecedented success and a newfound belief to Selhurst Park, faces one final challenge: the European final in Leipzig.

This momentous occasion comes after a season of significant highs and lows, including a period of fan unrest following Glasner's announcement of his summer departure.

Despite losing key players like Eberechi Eze and captain Marc Guéhi, Palace has navigated an arduous European campaign, travelling to distant corners of the continent to reach Wednesday's climactic match.

This journey has brought a spotlight to a fanbase often overshadowed by London's bigger clubs.

The current success stands in stark contrast to a period in the club's modern history when its very existence hung by a thread.

On the final day of the 2009-10 season, dubbed 'Survival Sunday,' Crystal Palace faced Sheffield Wednesday needing to avoid defeat to retain their Championship status and avert liquidation.

A dramatic 2-2 draw secured their survival, a result considered by many to be the most important in the club's history.

This followed a period of administration initiated in January of that season due to insurmountable debt.

The club was ultimately saved by a consortium led by Steve Parish a month after the season concluded, paving the way for its future.

From those perilous days, Palace endured several seasons of Championship uncertainty before achieving promotion to the Premier League in 2013.

Since then, they have maintained a consistent presence in England's top flight, finishing squarely in the mid-table each year without ever breaking into the top half.

For supporters who witnessed the club's near collapse in 2010 and participated in emotional protests to secure its survival, this consistency has been a source of quiet pride.

However, before Glasner's arrival, the club had lacked actual silverware to show for their rugged Premier League consistency.

Oliver Glasner dramatically altered this narrative, delivering two trophies in consecutive matches. He masterminded a dreamlike FA Cup triumph in May, followed by success in the Community Shield under the Wembley sun in August.

These victories fulfilled a generational craving for silverware among the fanbase.

Ollie Thomas of TalkCPFC, a prominent fan voice, aptly described the period: "I think the best way to put it is that we've had a lifetime's worth of memories in the space of the year... The FA Cup will always be the best one we've ever had."

He emphasized the sweetness of achieving this success sustainably, with a core of players representing Palace's true spirit.

Palace's maiden European campaign, however, did not begin without controversy.

Following significant investment, including New York Jets owner Woody Johnson's purchase of John Textor's 43% stake, the club was demoted to the Conference League by UEFA due to breaching multi-club ownership rules related to Textor's involvement with French side Lyon.

This demotion, initially met with dejection and a "sense of injustice," saw Nottingham Forest take their place in the Europa League.

Thomas recalled, "It felt typical Palace that things went wrong. We got demoted and we definitely had a chip on our shoulder... And whilst it was obviously really special to be in Europe, there was kind of a sense of injustice there."

Despite early disappointment, Crystal Palace embraced their European journey, travelling across countries like Poland, Bosnia, Italy, and Ireland.

After a mixed group stage, they improved significantly in the knockout rounds, beating experienced sides such as Fiorentina and Shakhtar Donetsk.

Their strong performances in key European matches highlight Oliver Glasner’s impact in changing the team’s mentality at Selhurst Park.

Although their Premier League form was inconsistent, balancing a demanding 60-game season alongside a successful European run is still seen as a major achievement.

Standing in Crystal Palace’s way of a dream farewell for Oliver Glasner are Rayo Vallecano, a strong and socially driven club from Spain’s LaLiga.

Known for representing the Vallecas neighborhood, they are seen as European overachievers like Palace, with a strong community identity.

Coached by Iñigo Pérez, Vallecano have impressed by exceeding expectations in LaLiga and defeating favorites Strasbourg in the Conference League semifinal, making them a serious and respected opponent.

Glasner anticipates a "very tight game," describing Vallecano as "the tactically best team in the Conference League that we have played so far," known for their intense pressing, constant running, and experienced players.

As Oliver Glasner prepares his team to face Vallecano, reflections on his time at the club highlight both success and emotion.

His unexpected January departure has become a moment of gratitude, with players and staff praising him as possibly the club’s best manager.

Glasner also expressed that what he will miss most are the people, players, staff, and fans, who made his experience special.

The upcoming Leipzig final is crucial for Crystal Palace’s future. A win would secure Europa League qualification and boost belief in the team’s potential for European success. However, the club must also plan carefully for the future, including the appointment of a new manager and smart recruitment to maintain progress.