The BBC already chose to show the Blades tie with Boro at the Riverside which is obviously a replay and the BBC have now also chose live screening for the Blades/Boro vs Cardiff game.
So if the Blades beat Middlesbrough at the Riverside we will then have a quater-final game against Cardiff at Bramall lane, which has been moved to sunday 9th march.Both to be shown on BBC.
The BBC have chose the following quater-final games:
Barnsley vs Chelsea...8th March.
Sheffield United / Middlesbrough vs Cardiff...9th March.
Bristol Rovers vs West Brom...9th March.