Sheffield United went top of the Championship thanks to David Brooks’ late winner at Yorkshire rivals Leeds.
Billy Sharp put the visitors in front with a second-minute header that keeper Andy Lonergan could not keep out, as the Blades controlled the early stages.
Kalvin Phillips equalised for the hosts with a cleanly-struck volley from the edge of the area before the break.
Samuel Saiz’s swerving strike hit the post for Leeds before substitute Brooks won the game with a calm, low finish.
Victory was Chris Wilder’s side’s ninth in their past 11 league games and saw them climb to the second-tier summit for the first time since November 2005.
For Leeds, who suffered a fifth loss in their past six games in all competitions, the result was slightly harsh after an even second half, but the Blades could have built a healthy first-half lead.
The hosts needed a superb reaction save from Lonergan to stop former Leeds man Sharp’s close-range flick from making it 2-0, as the visitors’ Mark Duffy ran the show in the opening 30 minutes.
Brooks’ neat, 81st-minute finish saw him score his first senior goal for the Blades, who continue to impress in their first season back in the Championship after winning League One in 2016-17.