Nigel Clough said Harry Maguire was left out of Sheffield United's 4-2 win against Dundee because the defender was unwell.
Oxford have signed goalkeeper George Long from Sheffield United on a loan deal until January.
Andy Butler is hoping he can contribute a few goals this season after breaking his duck for Sheffield United against Northampton.
Nigel Clough is content with the progress being made by his Sheffield United team following a 1-1 friendly draw at Northampton.
Sheffield United boss Nigel Clough is content with the progress being made by his squad ahead of the new League One campaign.
Much-travelled striker Dave Kitson has announced his retirement from football.
Sheffield United slumped to a 4-0 defeat at Burton in their opening pre-season friendly.
Sheffield United have rejected a third bid, believed to be in the region of £2million, from Hull City for their England Under-21 centre-half Harry Maguire.