Even though embarking on their maiden European campaign, Oliver Glasner's side are learning very quickly. Missing star players like forward Jean-Philippe Mateta and defender Daniel Muñoz, the Eagles departed Dublin with a comfortable win that virtually secures them a spot in the Europa Conference League qualifying rounds.
Another victory in their next fixture against Finland's KuPS ought to be enough to seal direct passage to the knockout stages, especially following a prior stumble against Strasbourg.
This match offered a platform for some of Palace's lesser-used players to impress. Christantus Uche, making only his second beginning after arriving on loan from Getafe, opened the scoring with a well-taken finish. Forward Eddie Nketiah contributed a another, finding the net for the second game in succession.
A Shelbourne side that had concluded their league season proved no match even for a largely rotated Palace lineup. The Londoners were further depleted by the reports that Mateta and Muñoz are sidelined with knee injuries.
In spite of torrential 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 set up Uche for a simple tap-in.
Midfielder Adam Wharton came close soon after, fizzing a long-range effort over the bar. Nketiah subsequently claimed for a penalty after racing into the area, but the referee waved away the appeals.
The formerArsenal man didn't need to wait long to get his goal, tapping home from a yard out after Uche's effort had struck the post.
Shelbourne were clinging on desperately. Defender Kameron Ledwidge was fortunate to avoid a booking for a couple of robust challenges on Yeremy Pino, before Chris Richards rattled the woodwork with a header from a corner.
The contest was as good as over eight minutes before half-time. Yeremy Pino weaved past a series of comically weak challenges before coolly dispatching a shot past keeper Wessel Speel to extend the lead to 3-0.
Following the break, coach Oliver Glasner seized the opportunity to rest key players like Kamada and Wharton. Substitute Romain Esse came close to scoring with his first touch, only to see his shot blocked.
The youngster was incredibly unlucky later on, seeing one shot crash off both posts before being gathered on the line. Uche then missed a sitter of a chance, indicating there is still room for improvement in his game.
The only concern for Palace was a late knock to Justin Devenny, who was forced off. This paved the way for 17-year-old striker Benji Casey to make his senior debut, capping an otherwise positive evening for the visiting side.
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