Chris Wilder says the Blades will travel to Wales fully focused on a fifth consecutive league success but admits Swansea City are a side his players can't afford to take lightly.
Looking ahead, the United chief remarked: "Swansea City are another club with an impressive teamsheet, including some talented young players as well.
"They are perhaps going through a transition at present, but like Hull City have, at any time they could click and their run of form doesn't surprise me.
"The same could happen at Swansea, who also have an experienced and successful manager, look at the raw talent they've got in the group, they are a very competitive team."
Wilder added: "They will be looking to find that consistency between now and the end of the season, to put a run together and see where it takes them.
"Our toughest away game this season by some distance was Rotherham United, people, including some of the players, perhaps thought it would be easy but we were second best for the majority of that game.
"We're expecting Swansea to be really good, but we will be positive in our approach and we will be looking for another victory."