After a drab 90 minutes with little in the way of real goalsciring opportunities for either side, the match was decided on spot kicks.
Youngster Louie Marsh and Benie Traore both missed before skipper John Egan skied the decisive penalty to cause a cup shock at Bramall Lane, with the League One side going through in front of their very vocal support.
Here's how we rated the Sheffield United players
Here's how we rated the Sheffield United players
5 / 5