Even though embarking on their maiden continental campaign, Oliver Glasner's side are adapting very quickly. Without star players like striker Jean-Philippe Mateta and wing-back Daniel Muñoz, the Eagles departed Dublin with a comfortable win that virtually secures them a place in the Conference League playoffs.
Another three points in their upcoming match against Finnish KuPS should be enough to secure straight passage to the last 16, especially after a previous setback against Strasbourg.
This match offered a platform for several Palace's lesser-used talent to shine. Christantus Uche, making only his second beginning after arriving on loan from Getafe, notched the scoring with a clinical finish. Forward Eddie Nketiah added a second, scoring for the second consecutive succession.
The Shelbourne team that had finished their domestic season were outmatched even for a mostly second-string Palace lineup. The visitors were further depleted by the news that Mateta and Muñoz are out with knee injuries.
In spite of heavy rain in Dublin, Palace rapidly took control. A flowing passing sequence in the 11th minute, sparked by Daichi Kamada's incisive pass, allowed Nketiah to lay on Uche for a straightforward tap-in.
Youngster Adam Wharton went close minutes later, driving a powerful shot over the bar. Nketiah then appealed for a penalty after bursting into the box, but the referee waved away the appeals.
Ex-Arsenal striker didn't need to wait long to get his goal, prodding home from a yard out after Uche's effort had struck the post.
Shelbourne were hanging on desperately. Defender Kameron Ledwidge was lucky to escape a booking for a couple of robust challenges on Yeremy Pino, before Chris Richards struck the crossbar with a powerful header from a corner.
The match was as good as over eight minutes from half-time. Yeremy Pino weaved past a series of weak challenges before coolly slotting a shot past goalkeeper Wessel Speel to make it 3-0.
After the break, coach Oliver Glasner seized the opportunity to rest key players like Kamada and Wharton. Replacement Romain Esse almost scoring his first touch, but saw his effort blocked.
Esse was desperately unlucky later on, seeing one shot crash off each posts before being gathered on the line. Uche also blazed a glaring chance, showing there is still room for development in his game.
The only concern for Palace was a second-half injury to Justin Devenny, who limped off. This paved the way for 17-year-old forward Benji Casey to make his first-team debut, rounding off an otherwise positive night for the traveling side.
A tech strategist with over a decade of experience in digital transformation and AI-driven solutions across European markets.