After a breakthrough season at Plymouth Argyle in 2021/22, where he regularly featured for the U18s, Harley will aim to force his way into the first team squad in the 2022/23 season, if he continues his fast progress. The combative central midfielder suffered a ruptured tendon in his calf midway through the first half of the season and is due to return to the U18s fold around Christmas 2022.