Tony McMahon scored two direct free-kicks as Sheffield United beat Crawley Town to move top of League One.
The defender opened the scoring in the first half after Joe Walsh had fouled Shaun Miller, before Nick Blackman had a shot saved by home keeper Paul Jones.
But McMahon made it 2-0 with a stunning strike from 30 yards out.
Crawley, who have now only won once in nine league matches, had opportunities but Hope Akpan was denied by George Long and Nicky Adams headed wide.
VIEW FROM THE DRESSING ROOM
Crawley Town manager Richie Barker told BBC Sussex:
"We probably didn't create as much as we would've liked with the amount of possession we had.
"But we arguably had the better chances and didn't make their goalkeeper work enough. I thought the way we played was excellent and I can't fault the players.
"They are a difficult side to break down and that's why they are where they are at the top of the league."
Sheffield United manager Danny Wilson told BBC Radio Sheffield:
"The fans were absolutely brilliant, especially to come on a day like this when everyone was expecting the game to be off.
"That in itself was an inspiration to us and we've had a solid performance to go with it.
"We defended brilliantly throughout the game and we've had two terrific goals from two set plays. I thought we were virtually in control for much of the game."
Crawley Town 01 Jones 03 Sadler 04 Connolly 12 Walsh Booked 13 Hunt Booked (Ajose - 84' ) 06 Akpan 11 Simpson 15 Bulman (Clarke - 67' ) 16 Adams 21 Jones 09 Alexander (Akinde - 74' ) Substitutes 25 Kuipers 28 Davis 07 Clarke 08 Torres 10 Clifford 14 Ajose 17 Akinde Sheffield United 25 Long 05 Maguire 06 Hill Booked 15 Collins 29 McMahon 07 Flynn 08 Doyle 11 McDonald 10 Blackman (Williams - 90' ) 12 Miller Booked (Cofie - 81' ) 14 Kitson (Ironside - 69' ) Substitutes 02 Westlake 30 Williams 16 McAllister 26 McFadzean 35 Coyne 19 Cofie 24 Ironside