Chris Wilder is adamant the Blades will have a fit and healthy squad in place come the first day of the new season, but admits he is having to be patient in the hunt for 'quality' reinforcements.
Speaking after Tuesday win at Bradford City, the United manager explained the Blades current position in the transfer market.
He remarked: "When it comes to the quality signings, there are some big powerful Championship football clubs chasing the same signatures and we are in there with a shout.
"It is tough at this level, when we were in League One signing the likes of Fleck, Duffy and Leon Clarke it was a no brainer because we were the standout club.
"Last season we recruited young hungry players who weren't proven at Championship, the likes of Stevens and Baldock, with Jamal Blackman coming in on-loan."
Wilder added: "But now, we are after that real quality, it's difficult I'm not going to hide away from that and we're battling it out with some big spending clubs.
"I'm impatient and I'd love to be announcing new signings to the supporters, but I've got to sign the right players that fit into the group and make us better."