Rotherham UnitedDerby-day question mark over Rotherham United's Grant Hall as Millers gear up for Sheffield United clashBy Paul DavisPublished 4th Sep 2022, 17:36 BSTUpdated 5th Sep 2022, 14:59 BST Grant HallDEFENDER Grant Hall is facing a battle to be fit for Rotherham United's derby showdown at Sheffield United next weekend. Related topics:Sheffield UnitedMillers