Ariel Mosór

Born in Katowice, Mosór went through the ranks of Unia Warsaw, before joining Legia Warsaw in 2018. He played his first professional match on 15 July 2020, during an Ekstraklasa goalless away draw against Lechia Gdańsk. He made one more league appearance during the 2019–20 season and received a gold medal following its conclusion, as Legia were crowned champions. On 9 June 2021, Piast Gliwice announced the signing of Mosór on a three-year deal, with the option to extend the contract for another 12 months. On 12 January 2024, Piast announced they have exercised said extension clause. On 23 August 2024, Mosór signed a four-year deal with fellow Ekstraklasa club Raków Częstochowa. On 5 July 2026, Mosór moved to Korona Kielce on a four-year contract for an undisclosed fee.

As of match played 23 May 2026

His father, Piotr Mosór, was also a professional football player.

Legia Warsaw

Ekstraklasa: 2019–20 Individual

Ekstraklasa Young Player of the Season: 2022–23 Ekstraklasa Young Player of the Month: March 2022, April 2023 December 2023