The Republic of Ireland suffered a narrow 1-0 defeat to Austria in Linz as second-half substitute Saša Kalajdžić struck late to secure victory for the hosts and confirm their promotion to League A of the UEFA Nations League.

Both sides created chances in a fiercely contested encounter, but Kalajdžić’s 78th-minute tap-in from close range ultimately proved decisive.

Heimir Hallgrímsson made four changes to the side that drew with Israel last month, with James Abankwah, Dara O’Shea, Finn Azaz, and Nathan Collins replacing Jimmy Dunne, Jake O’Brien, Jason Knight, and Conor Coventry. Collins returned to the starting XI to captain the side, while Adam Idah and Troy Parrott spearheaded the attack.

Caoimhín Kelleher was called into action as early as the second minute when Christoph Baumgartner struck a low effort from the edge of the box. Despite the ball taking a wicked deflection, Kelleher adjusted sharply to turn it around the post for a corner. The Irish goalkeeper produced another vital stop in the 13th minute when Christoph Lang burst into the area with Liam Scales in pursuit. The ball ricocheted kindly for the Austrian forward, but Kelleher smothered the danger at close quarters to prevent an early breakthrough.

Ireland settled into the contest midway through the first half as they began to bypass the hosts’ aggressive high press. Nathan Collins and Finn Azaz both probed the Austrian backline, before Ireland registered their first shot on target in the 23rd minute. Dara O’Shea’s inviting cross from the left was met acrobatically by Troy Parrott, whose overhead kick forced Alexander Schlager down smartly to save.

Schlager was called upon again on the half-hour mark when Parrott picked up possession inside the Austrian half and unleashed a dipping long-range strike that the home goalkeeper tipped over the crossbar. From the resulting corner, O’Shea arrived at the back post to direct a header goalwards, but Schlager gathered comfortably.

Kelleher matched his counterpart with another superb intervention in the 35th minute. Stefan Posch broke down the right and delivered a low cross to Lang; the ball bounced awkwardly in front of the forward, whose first-time strike was brilliantly tipped over the bar by the Irish stopper.

Ireland opened the second half on the front foot, crafting an opportunity inside two minutes. Parrott initiated a fluid move involving Abankwah and Azaz, with the latter delivering a dangerous cross that required a crucial block from Kevin Danso. Austria threatened at the other end shortly after when Romano Schmid’s corner found Michael Gregoritsch at the near post, but his flicked header drifted narrowly over.

As the tempo intensified, Austria tested Kelleher again on the hour mark. Another teasing delivery from Posch found Danso, whose downward header was pushed around the post by a fine diving save. Baumgartner then latched onto Schmid’s lay-off moments later, but Kelleher stood tall once more to turn the near-post effort behind.

Ireland carved out their best opening of the night in the 65th minute. Jack Moylan did brilliantly to dispossess Danso before Parrott slipped in Jayson Molumby. The midfielder picked out the late run of Ryan Manning, whose low drive was kept out by the outstretched boot of Schlager. Less than a minute later, Idah surged down the right and whipped a teasing ball across the face of goal, just evading the incoming green shirts.

Parrott went close again in the 68th minute, cutting in from the left and stinging the palms of Schlager with a rising strike. The rebound fell to the onrushing Idah, but the striker was unable to keep his first-time effort down.

Gregoritsch then forced Kelleher into another top-drawer save in the 72nd minute, meeting a set piece with a powerful volley that the Irish goalkeeper palmed over the crossbar with sharp reflexes.

The deadlock was finally broken in the 78th minute. An Austrian corner was delivered deep to the back post, where Gregoritsch headed it back across the six-yard box for Kalajdžić to apply the finishing touch from a yard out.

Ireland pushed hard for an equaliser in the closing stages. Substitute Chiedozie Ogbene had a goalbound drive deflected wide before testing Schlager in the 87th minute, meeting Scales’ pinpoint cross with a near-post flick that the goalkeeper kept out at full stretch. From the ensuing pressure, Collins looped a header towards the top corner, only for Schlager to tip it over once again.

Ireland conclude their UEFA Nations League campaign against Kosovo at the Aviva Stadium on Tuesday, with their fate firmly in their own hands. A victory over Kosovo would see Hallgrímsson’s side finish second in the group and secure a promotion play-off spot for a chance to reach League A, as well as sealing a vital Pot 2 seeding for next month's Euro 2028 qualifying draw.

Austria: Schlager (GK), Danso, Posch (Horvath 76), Seiwald, Lang (Kalajdzic 60), Baumgartner (Florucz 76), Gregoritsch, Lienhart, Mwene, Schmid (Affengruber 90), Laimer (C).
Subs not used: Wiegele (GK), Jungwirth (GK), Spalt, Adamu, Bacher, Demir, Weinhandl, Svoboda.

Republic of Ireland: Kelleher (GK), Abankwah (Lawal 79), Scales, O’Shea, Molumby, Parrott, Idah (Ogbene 69), Azaz, Moylan (Vale 69), Manning (O’Brien 69), Collins (C).
Subs not used: O’Leary (GK), Travers (GK), Knight, Cannon, Kitching, Vata, Coventry, Egan.

Booked: Schmid (AUT), Moylan (IRL), O’Brien (IRL), Laimer (AUT)
Sent off: None
Player of the Match: Caoimhín Kelleher (IRL)
Referee: Irfan Peljto (Bosnia and Herzegovina)