Grzegorz Sandomierski

Grzegorz Sandomierski (; born 5 September 1989) is a Polish former professional footballer who played as a goalkeeper. He currently serves as the assistant goalkeeping coach of Ekstraklasa club Jagiellonia Białystok, and the head goalkeeping coach of the Poland national under-19 team.

At international level, Sandomierski has represented the Poland senior team at UEFA Euro 2012.

Club career

Jagiellonia Bialystok Sandomierski's career began at Jagiellonia Białystok, starting in the reserve side from 2006. He played in four games and then was loaned out to Lech Poznań. He made two appearances in the fourth division, after which he returned to Jagiellonia. In the 2007–08 season, due to an injury to Jacek Banaszyński, Sandomierski made his Ekstraklasa debut against Cracovia in which he conceded two goals. By the end of the competition, he appeared in four other matches. Sandomierski then sustained a serious injury which excluded him from play for half a year. In January 2009, he was loaned to Ruch Wysokie Mazowieckie, where he played as a first choice goalkeeper. Prior to the 2009–10 season, he returned to Białystok. Sandomierski got his chance for Jagiellonia after Rafał Gikiewicz suffered a poor run of form. During his time at Jagiellonia, for six matches in a row, Sandomierski kept a clean sheet. His streak lasted 564 minutes, a club record, and ended in a clash with Ruch Chorzów.

Blackburn Rovers

On 31 August 2012, Sandomierski signed on a season long loan with Blackburn Rovers with a view to signing long-term.

He made his debut for Rovers against Cardiff City in a 3–0 defeat conceding two goals one of which was a penalty, coming on for injured counterpart Jake Kean in the 52nd minute. Sandomierski's second appearance came against Sheffield Wednesday after it was announced that Kean would miss the remainder of the season through injury. Caretaker manager Gary Bowyer expressed his faith in the Polish international, however Rovers were beaten 3–2 on the day. His next match saw him gain two impressive clean sheets against Derby County and Huddersfield Town. He then conceded four goals against Watford in a not so impressive match. In his next match against Millwall he only conceded one goal but had a fairly comfortable game.

Coaching career On 13 January 2023, at the age of 33, he ended his professional football career. In July 2023, he joined Jagiellonia Białystok's under-19 team and KS Turośnianka as a goalkeeping coach.

In June 2024, he left Turośnianka to focus on his duties at Jagiellonia. A year later, he was promoted to the role of assistant goalkeeping coach for Jagiellonia Białystok's senior team.

In August 2025, Sandomierski joined the Poland under-18s' coaching staff.

Honours Jagiellonia Białystok Polish Cup: 2009–10 Polish Super Cup: 2010

Dinamo Zagreb Prva HNL: 2013–14

Zawisza Bydgoszcz Polish Super Cup: 2014

CFR Cluj Liga I: 2019–20, 2020–21 Supercupa României: 2020

Individual Polish Newcomer of the Year: 2010 Ekstraklasa Player of the Month: October 2009, March 2015