Sheffield United came from behind to beat Leyton Orient 3-1 at Bramall Lane to strengthen their grip on second place.
Kevin Lisbie put the visitors in front, but goals from Lee Williamson, Michael Doyle and Ched Evans gave the Blades their sixth straight win.
After some early pressure from the home side Orient took a 12th-minute lead when goalkeeper Jamie Jones' clearance found Lisbie, who nipped in ahead of Harry Maguire before firing past home goalkeeper Steve Simonsen.
Lisbie dragged a shot wide before Williamson equalised three minutes before the break after Evans had squared to him inside the penalty area. Jones got a hand to his shot, but could not keep the ball out.
Doyle found the net with a low drive from around 20 yards in the 54th minute after receiving a short pass from Williamson
and the visitors were down to 10 men in the 61st minute when Ryan Dickson was sent-off following a wild challenge on Williamson.
Evans completed the scoring in the 83rd minute after surging into the area and firing past Jones for his 35th goal of the season.