Boss Chris Wilder refused to give too much away when talking about the health of his squad ahead of Sunday's Steel City derby.
All of United's strikers have either missed games through injury or played when not fully fit in recent weeks and the Blades boss acknowledged it hasn't been ideal preparation.
But he was bullish in his approach, remarked: "We've got a few injuries and issues, we understand that, but all will be revealed when the teamsheets are handed at Hillsborough.
"Take myself and Billy out of it for a minute because this means just as much to all our players and they know what we're about when it comes to playing for this club.
"We want to play well and we want to win, of course things are ramped up with it being a Steel City derby, but all the players fully understand just how important a game this is."
Wilder continued: "We're keeping our cards close to our chest, we're frustrated that we're not at full strength, particularly at the top of the pitch.
"But at the same time I have no qualms if we are missing players, that is part and parcel and if someone gets an opportunity to play they will give everything they have to help us get the three points."