Leeds' nightmare season continued as a dreadful defensive display handed Leicester victory at Elland Road.
Danny Tiatto put the Foxes ahead after 29 minutes when he crashed home after Leeds failed to clear in their area.
Matthew Kilgallon was sent off after 55 minutes for fouling Elvis Hammond, and Iain Hume calmly added a second for Leicester with 10 minutes left.
Leeds skipper Paul Butler pulled one back when he headed home Gary Kelly's cross five minutes later.
Leeds caretaker boss John Carver said:
"The defeat hinged on two decisions. The first was the sending off. We will be appealing against it.
"The second was whether the ball crossed the line (when a chance was cleared off the line by Leicester). I have watched it and the ball was about a yard over."
Leicester boss Rob Kelly said:
"We had lots of chances but scoring is the hardest thing and a couple of weeks ago we could not score.
"So I am not going to be greedy, I thought we created chances and as long as we do that we will score. But we had enough chances to have killed them off.
"The strange thing is our away performances have been good and we have not been beaten very often."
Leeds: Sullivan, Kelly, Butler, Kilgallon, Crainey, Douglas, Derry, Johnson (Westlake 90), Healy (Foxe 57), Cresswell (Blake 79), Moore.
Subs Not Used: Warner, Richardson.
Sent Off: Kilgallon (55).
Booked: Cresswell, Butler, Healy, Douglas, Derry.
Goals: Butler 87.
Leicester: Logan, Stearman, Kisnorbo, McAuley, Johansson, Low (Maybury 87), Williams (Welsh 23), Hughes, Tiatto (Sylla 90), Hammond, Hume.
Subs Not Used: Henderson, O'Grady.
Booked: Hughes, Welsh.
Goals: Tiatto 29, Hume 81.
Ref: C Webster (Tyne & Wear).