Chris Wilder felt Tuesday's success over Brentford at Griffin Park showed the true 'character' of his squad.
The Blades boss was critical of his side following Saturday's draw at Rotherham, but full of praise for his men after a deserved victory in London.
Wilder made two changes against the Bees and remarked: "George Baldock would have played had he not been ill and Leon would have started too.
"But he trained in Sunday and he felt his abductor. He's been having treatment since, but he wanted to travel down when he could have easily stayed at home and got himself right for Saturday.
"He wanted to be a part of the squad and in the end he played an enormous part in getting us the win."
The Blades chief added: "The character of the group is excellent. We made some changes but to a man they've all accepted it positively.
"We wanted round pegs in round holes, it is a big win, we created chances and scored goals, but we defended really well.
"John (Lundstram) was excellent too he picked up the pace of Championship football straight away, despite having not played for a long while and Conor (Washington) was outstanding."