Full-time: Derby County beat Leeds United 3-1 at Pride Park
DERBY County made it eight wins out of eight against Leeds United with a 3-1 victory at Pride Park Stadium.
Former Rams midfielder Paul Green netted against his old club to cancel out Conor Sammon's opener.
But second-half strikes from Jake Buxton and substitute Ben Davies won it for Derby.
Nigel Clough named an unchanged side after midfielder Craig Bryson (knee) and defender Gareth Roberts (calf) were again ruled out by injury.
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As a result, James O'Connor continues at left-back and Jeff Hendrick keeps his place in the middle of the park.
There was one change on the bench - Conor Doyle replacing Michael Hoganson after recovering from emergency surgery on his appendix.
Sammon chased down his own flick-on in the ninth minute and keeper Paddy Kenny raced out of his goal but cleared against his own player, though was relieved to see the ball bounce wide of the unguarded net.
From Jacobs' resulting corner, Theo Robinson headed goalwards but the ball deflected over off a Leeds player.
Ross McCormack's free kick cleared the bar in a brief spell of Leeds pressure - but the Rams went ahead in the 15th minute.
Robinson's quickly taken free kick found Will Hughes, who threaded a pass to Sammon.
The striker controlled the ball on the edge of the box, went past Lee Peltier and his low shot wrong-footed Kenny on its way into the net.
Derby looked to press home their advantage and, in the 24th minute, Robinson combined well with Sammon but Kenny blocked at his feet, from a tight angle.
Hendrick went in high on Ryan Hall after 36 minutes but escaped with a yellow card.
With half-time approaching Hughes' cross from the left was sliced into the side-netting by Leeds defender Tom Lees.
But the visitors were level just before the break.
A cross from the left by Lee Peltier was nodded down by Luciano Becchio and Green nipped in to turn the ball past Adam Legzdins from close range.
Leeds began the second half brightly, with McCormack firing a low shot at Legzdins within seconds of the restart.
At the other end, Paul Coutts cut in from the right before testing Kenny from distance.
The visitors went close in the 52nd minute, when Hall's curler was half-saved by Legzdins before Michael Jacobs clearer the danger, with McCormack lurking.
After soaking up some pressure, Derby responded well - Sammon firing a tough chance wide after a surging run from Coutts.
Then, Hughes went on a fine mazy run into the area before being denied by Kenny.
John Brayford's header was cleared off the line from a Jacobs corner in the 65th minute.
The next Jacobs corner found its way back to him and his cross from the left was cleared only as far as Richard Keogh.
Keogh drove the ball goalwards and Buxton turned it into the net from close range.
David Norris' well-struck drive from the edge of the box was beaten away by Legzdins.
And Leeds so nearly equalised for a second time in the 78th minute.
Substitute El-Hadji Diouf's cross from the right was headed against a post by Lees and Keogh managed to hack it off the line.
Buxton had injured himself in the build-up and had to be replaced by Mark O'Brien.
Diouf fired narrowly wide from 20 yards and then turned Aidan White's centre past the post in a nervy finale - but the Rams held on and added a third goal in the fourth minute of added time.
Coutts won possession and, instead of running into the corner, picked out Davies on the right and he cut inside before curling a fine 20-yard shot into the far corner.
GOALS: Sammon (15) 1-0; Green (45) 1-1; Buxton (66) 2-1; Davies (90+4) 3-1.
DERBY COUNTY: Legzdins, Brayford, Keogh, Buxton (O'Brien, 79), O'Connor, Coutts, Hendrick, Hughes (Freeman, 90+1), Jacobs, Robinson (Davies, 82), Sammon. Other subs: Fielding (gk), Doyle, Tyson, Bennett.
LEEDS UNITED: Kenny, Byram, Lees, Tate, Peltier, Green, Tonge, Norris (White, 80), Hall (Varney, 68), Becchio, McCormack (Diouf, 74). Other subs: Ashdown (gk), Pearce, Brown, Gray.
REFEREE: S Mathieson (Cheshire).
BOOKINGS: Rams - Hendrick (36) foul on Hall; Hughes (70) foul on Byram; Davies (90+5) ungentlemanly conduct.