Despite entering their first-ever continental adventure, Oliver Glasner's side are adapting very quickly. Without star players like striker Jean-Philippe Mateta and wing-back Daniel Muñoz, the London club departed Dublin with a commanding win that all but guarantees them a place in the Conference League playoffs.
Another three points in their upcoming fixture against Finland's KuPS ought to be sufficient to secure straight passage to the knockout stages, especially following a prior setback against Strasbourg.
This match offered a platform for several Palace's fringe players to shine. Christantus Uche, making only his second beginning after arriving on loan from Getafe, opened the account with a clinical finish. Striker Eddie Nketiah contributed a another, finding the net for the second consecutive succession.
The Shelbourne team that had finished their domestic season were outmatched against a mostly second-string Palace outfit. The visitors were further depleted by the news that Mateta and Muñoz are sidelined with leg injuries.
In spite of heavy rain in Dublin, Palace rapidly took control. A slick passing sequence in the 11th minute, sparked by Daichi Kamada's clever pass, let Nketiah to lay on Uche for a simple tap-in.
Youngster Adam Wharton came close soon after, driving a powerful effort over the bar. Nketiah then appealed for a penalty after racing into the area, but the referee dismissed the appeals.
Ex-Arsenal striker did not have wait long to get his goal, prodding home from close range after Uche's shot had hit the post.
Shelbourne were clinging on for dear life. Defender Kameron Ledwidge was lucky to avoid a booking for a couple of robust tackles on Yeremy Pino, before Chris Richards struck the crossbar with a 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 calmly slotting a shot past goalkeeper Wessel Speel to extend the lead to 3-0.
After the break, manager Oliver Glasner took the chance to withdraw several individuals like Kamada and Wharton. Substitute Romain Esse almost scoring his first touch, only to see his shot blocked.
Esse was desperately unlucky later on, seeing one attempt strike off each posts before being clasped on the line. Uche then missed a glaring chance, indicating there is still room for improvement in his game.
The only concern for Palace was a late injury to Justin Devenny, who was forced off. This paved the way for 17-year-old forward Benji Casey to make his senior debut, capping an otherwise perfect night for the visiting side.
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