The transfer from FC Midtjylland was confirmed in the early hours of Wednesday, going through at around 8pm local time in Chile, and immediately became one of the biggest talking points in Chilean football.
"Darío Osorio's future was a huge topic of conversation in Chilean football. Everyone wanted to see him reach the Premier League, the league that gets the most attention in the country," AS Chile editor-in-chief Pablo Vera told Bold.
Vera said anticipation had built for weeks as reports of interest from Manchester City and Liverpool circulated, only for the mood to dip when Saudi side Al-Ittihad emerged as a suitor on Tuesday.
"There has been huge excitement and high expectations in recent weeks, especially with clubs like Manchester City and Liverpool showing interest," Vera said.
"When Al-Ittihad were mentioned as an option for Osorio, a certain disappointment and frustration spread that it might not be the Premier League after all."
Once talk of Crystal Palace resurfaced, he added, spirits in Chile lifted again.
Palace have signed the 22-year-old on a season-long loan with an obligation to buy worth around €26 million plus a further €4 million in add-ons, according to Ben Jacobs, with a loan fee in the region of €2 million also included.
Osorio scored twice and set up three more in 11 appearances for Midtjylland this season before the move, having made 121 appearances in total for the Danish champions since joining from Universidad de Chile in 2023, contributing 25 goals and 18 assists across two Superliga title-winning campaigns.
With several of Midtjylland's matches broadcast on Chilean television, Vera expects that audience to migrate to Palace, particularly supporters of Universidad de Chile, the club where Osorio came through the academy system. "Fans of Universidad de Chile - the club where he developed as a player - will very likely start following Palace, and the same could happen with supporters of other Chilean clubs," he said.
Chilean football has fallen away from the European elite in recent years compared with the country's stronger period, and Vera believes Osorio's move represents progress.
"Unlike a few years ago, Chile currently has very few players in Europe's top leagues, so a player in the Premier League is significant progress for both Chilean football and the national team," he said, adding that the move offers hope of lifting a national side currently in crisis and short of the calibre of player needed to return to the World Cup.