Jan 10 Portsmouth (H) 3-2
Jan 19 West Ham (A) 1-0
Feb 16 Newcastle (H) 1-0
Mar 13 Liverpool (A) 3-2
Apr 10 Chelsea (A) 2-3
Apr 20 Chelsea (H) 4-0 (agg.6-3)
Watch the final live on MUTV
Paul McGuinness' Reds overcame some stiff competition to go all the way in the prestigious competition, including Liverpool and Chelsea, and the impressive Blades are the last obstacle before lifting the trophy.
Both legs are live on MUTV, with the first clash at a sold-out Bramall Lane on Tuesday evening before the Yorkshiremen head over the Pennines on Monday 23 May for the decisive fixture at Old Trafford.
Our exclusive video shows all the action from United's participation in this year's tournament.