Nigel Adkins says United are prepared for a 'tough' test at Blackpool on what promises to be a bitterly cold Tuesday evening at the seaside.
And the Gaffer believes the Blades will need plenty of 'resilience, grit and determination' against the improving Tangerines, who beat Scunthorpe 5-0 at Bloomfield Road in their last home league outing, prior to Saturday's draw with promotion chasing Walsall.
Adkins remarked: "Blackpool is the next challenge and it will be a tough one, they are a much better side than the one we faced in August and full credit to their manager, Neil McDonald.
"It has taken time, but gradually he has evolved his squad, brought in a good mix of youth and experience and has got them playing some good football.
"The weather forecast isn't great by all accounts, it is likely to be wet and windy on the coast, so we'll have to be ready to handle the conditions in addition to dealing with the threats Blackpool themselves will pose.
"But we have demonstrated in recent weeks that as a group we have a genuine resilience, grit and determination about ourselves and we will need on Tuesday night that's for sure."
He added: "Blackpool were impressive when putting five past Scunthorpe United and on Saturday they were always in the game at Walsall and got a deserved point with a late goal, so we are under no illusions about what we will have to do to return with a positive result.
"In Uche Ikpeazu they have got a pacey, powerful striker who we know from our time at Reading and he did well against us for Port Vale earlier in the season too.
"But it isn't just Uche, they have a number of good attacking players, whilst also being more difficult to beat."