Chris Wilder was understandably delighted with a fifth win in six league matches, as Bristol Rovers were beaten at Bramall Lane on Tuesday evening.
Substitute Harry Chapman, with his first goal for the club proved to be the match winner, as United ended September with 13 point haul from a possible 15.
Speaking in the aftermath of the latest success, Wilder remarked: "I spoke to their manager after the game and they expected us to play with three centre-halves, but we decided to change it and we're delighted to have won the game.
"Bristol Rovers started well, attacked and showed what a dangerous side they can be and it was two teams having a right good go.
"The only disappointment was that we weren't more ruthless and positive having gone in front, especially after they were immediately reduced to ten men from the restart.
"I wanted us to move the ball quicker and kill them off, because you are never safe at 1-0, but thankfully nothing happened and we have ended a fantastic month with another win."
Reflecting on Harry Chapman's decisive header which led to a spectacular celebration, the Gaffer added: "We said at half-time it would be a mistake or a bit of magic that would decide the game and it was the latter, Harry gave us a bit of a spark and he deserved to get the winning goal.
"Scougs wasn't feeling too well, he was struggling at half-time, so we made the change and it came off. Harry has had to be patient, but we know he can make a positive impact off the bench and he made the most of his opportunity."