Kieran Sadlier

West Ham United

A youth team player with Cambridge United, Sadlier joined West Ham United in 2005. After finishing top goal scorer for the U18s in their 2012–13 season, Sadlier went on to feature regularly for the U21s, he requested to be released from his contract early in January 2015 in order to sign for St Mirren until the end of the 2014–15 season.

St Mirren

Sadlier made his debut on 28 February in a 1–0 home win against Hamilton Academical coming on as a half-time substitute for Viktor Genev. He made his full home debut against Celtic on 3 April 2015 in a Good Friday evening televised game that Celtic went on to win 0–2. Sadlier scored his only goal for St Mirren in a 4–1 home victory against Kilmarnock on 25 April 2015. Sadlier decided that he wanted to be playing back in England to be nearer to his family and left the club at the end of his contract, despite the St Mirren manager Ian Murray inviting him back for pre-season training.

Peterborough United

On 20 July 2015, Sadlier signed a contract with Peterborough United after a successful trial period. He was an unused substitute against Burton Albion and started against Charlton Athletic in the second round of the Capital One League Cup.

FC Halifax Town

On 9 October 2015, Sadlier joined FC Halifax Town, on loan from Peterborough United for three months.

Sligo Rovers

On 11 January 2016, Sadlier signed for League of Ireland Premier League side Sligo Rovers until the…

Under 15 – U19s

Sadlier has played for Republic of Ireland at U15, U16, U19 and U21 levels. For the U15 side, Sadlier made two appearances, scoring on his debut against Northern Ireland U15s and was a substitute against Wales U15s, coming on for the last 20 minutes. He made four appearances for the under-16s against Czech Republic U16s (twice), Portugal U16s and Italy U16s and played in three U17 games against Norway U17, Albania U17 and Malta U17s in the U17 Euro Championships. For the U19 team, Sadlier made 10 appearances, starting in all 10 games, scoring one goal against Switzerland U19s in the U19 European Championship finals held in Serbia.

Under 21s

Sadlier made his Ireland U21 debut against Qatar in a friendly played in Aachen, Germany on 24 May 2014. He made four further appearances for the Irish U21s, against Germany in Leipzig, Norway U-21s on 26 September 2014 played in Drammen, Norway, both these matches were in the U21 European Championship. This was followed by a double header of friendlies against the USA & Russia U21s in which Sadlier played against Russia, both games were played in Spain.

Senior squad

Sadlier was named in Mick McCarthy's provisional squad in October 2019 for qualifiers against the Georgian national team and the Switzerland national team. On 29 October 2019 Sadlier was named in an extended 39-man provisional squad for a friendly against New Zealand and a qualifier against Denmark in November 2019.

As of match played 8 May 2023

Cork City

LOI Premier Division: 2017 FAI Cup: 2017 Rotherham United

EFL Trophy: 2021–22 Bolton Wanderers

EFL Trophy: 2022–23 Leyton Orient

EFL League Two: 2022–23 Wycombe Wanderers

EFL Trophy runner-up: 2023–24