Chris Wilder couldn't hide his delight at acquiring his second 'number one target' of the summer.
The Blades have paid Brentford an undisclosed club record fee for their captain John Egan, but the manager is convinced it will prove to be money well spent.
Speaking upon confirmation of the news, Wilder remarked: "It is a moving target with transfers and players coming in because of the market and how it fluctuates.
"But position specific we identified areas we needed to improve from last season and in that was a goalkeeper, we got our number one target and a centre-half, we've got our number one target.
"We have had to work extremely hard and I'm grateful for the backing I've had and the work Steve (Bettis) and Carl (Shieber) have put into this deal.
"We feel we've really got a quality signing at a great age. John will make us better now and in the future."
The boss continued: "We've got a plan to do it in our way, but I'm delighted to have got a captain from a rival club that have an excellent recruitment plan themselves and one that have gone well at this level in recent seasons.
"He is an international and I'm sure he'll go on to win more caps during his time with us.
"We want to get better year on year and John will contribute to that immediately and we're moving in different circles now as we look to sign quality.
"We've had a tremendous record in the transfer market since we came through the door though, we've got the maximum for the players we've had to sell and we've reinvested and built up a good number of assets."