Yorkshireman Shackleton swapped Elland Road for Bramall Lane in the summer of 2024 but will be hoping with more luck with injuries in his second campaign as a Blade.

Last term, having missed the opening weeks of the season, the dependable and versatile performer made 12 league appearances between September and December, before injury ruled curtailed the progress of a player who has also played for Millwall in the second tier.