Accrington handed Blades trip
The Carling Cup second round draw threw up the prospect of more giant-killing exploits after most of the Barclays Premiership clubs were paired with League Two opposition.
Accrington Stanley’s reward for knocking out double European champions Nottingham Forest on their first ever appearance in the competition is a trip to Sheffield United, while the Football League’s bottom club Bury – who shocked Sunderland in round one – visit United’s fellow top-flight new boys Watford.