Harrison previously had a successful six-month stint with Chester in the National League North during the 2024/25 season. He impressed during his time with Chester and caught the attention of Shrewsbury's director of football, Micky Moore.

Moore expressed his excitement about signing Harrison, saying that he has been targeted by the club since last season ended. Moore believes that Harrison has a bright future and that this loan could be beneficial for his development.

Shrewsbury's manager, Michael Appleton, also wanted to bring Harrison to the team as soon as possible. Moore praised Harrison's characteristics and thanked him and Manchester United for their cooperation throughout the process.