[4] On 17 January 2021, he made his official debut in the Belgian Pro League in the home game against Oud-Heverlee Leuven.
[6][7][8] On the penultimate matchday of the regular season, Steuckers, who had been sidelined with a COVID-19 infection a month earlier, was given his first starting berth in the Belgian Pro League against his former youth club Genk.
[9][10] Steuckers put in strong performances during the 2021–22 pre-season under new coach Bernd Hollerbach, but a foot injury threw a spanner in the works.
[13] He signed a new contract with Sint-Truiden in July 2022,[14] and was sent on a season-long loan to Dutch second-tier Eerste Divisie club MVV on 4 August 2022.
[16] Steuckers became a pivotal player during his season at MVV, featuring in almost every match and showcasing his skills with eight goals and ten assists.