Chris Wilder described United's performance at Villa Park as 'outstanding', despite being forced to settle for a point in a game the Blades dominated.
Billy Sharp's second hat-trick of the season looked to have put United on course for the Sky Bet Championship summit with a deserved win, only for the home side to score three late goals, including a 94th minute equaliser, to cruelly deny the Blades.
But Wilder was typically bullish speaking in the aftermath of the clash.
He remarked: "I thought we were outstanding, we've come to a proper football club and put a right display on.
"We've taken the game to the opposition and dominated it really, but one mistake from the goalkeeper leads to two and it can happen if you give good players a sniff of it, but they've had five minutes of the game.
"They've not had any real possession, they've not drove us back, but they've capitalised on three mistakes.
"We played great second-half, I'm delighted with how we performed and they care inside the changing room, there have been a few bits and pieces in there."
Wilder added: "We have to quickly move on, but there are a load of positives to take from that performance.
"We weren't naïve at all, even when they scored the first, it was never backs to the wall for us. In and out of possession the shape was great, we made a very good team look ordinary.
"We were 3-0 up with seven minutes to go, but things can happen on the back of poor decisions."