Chris Wilder was delighted with the three points the Blades secured on testing night against Coventry City at the Ricoh Arena on Thursday.
A goal in each half from skipper Billy Sharp saw United move back up to second in Sky Bet EFL League One, on an evening where the manager admitted his side weren't at the races in a game that was regularly disrupted by the home supporters protesting against their owners.
Wilder remarked: "We didn't play well, the game was stop start throughout, but we've shown a sign of a successful team, by winning a game late on despite not being anywhere near out best.
"We managed to find a way to get that decisive goal to get over the line, but Coventry can count themselves very unfortunate not to get a result.
"We've been outstanding for a number of weeks, even when results haven't quite gone our way and this was by far and away our least impressive performance, but these things happen.
"The heart and desire to win the game has been immense and we are fortunate to have someone like Billy (Sharp) up top."
On the pitch protests by the Coventry supporters that saw the game halted on numerous occasions, the Blades boss added: "I didn't enjoy the night, that's twice that's happened to us now in a matter of weeks.
"It was virtually guaranteed something would happen of that nature, the stage was set for it to happen and it did."