Danny Wilson heaped praise on his players following Saturday's 1-1 draw with Scunthorpe United at Glanford Park, which saw the Blades finish with nine men.
Michael Doyle saw red in the first-half and Ryan Flynn was dismissed after the break, but a Neill Collins header from a Tony McMahon free-kick late on saw United extend their unbeaten start in League One to five matches.
Commenting on the performance and character his side demonstrated in difficult circumstances, the Gaffer said:
"The game became something of a lottery after the first red card, we started well and saw plenty of the possession but as you would expect Scunthorpe took control with us down to ten men.
"The draw was justice and felt like a win to us. If anyone would have said we would come to Glanford Park and come away with a point after going down to nine men then you would have thought they were barmy, make no bones, this has been a brillant performance.
"I am so proud of them all, they have put their bodies on the line to get this point and we knew a set-piece could get us back into the game and that has happened thankfully.
"You can never question the committment of these boys, they were fantastic and you could see what the fans thought at the end, they were estatic and rightly so."