Sam Winnall scored two second-half goals as in-form Derby inflicted more misery on Leeds with a 2-1 victory at Elland Road.
The on-loan Sheffield Wednesday striker took his goal tally to three in his last two games to ensure Gary Rowett's side came from behind to claim a fourth consecutive victory, extending their unbeaten run to seven matches.
Winnall repaid Rowett's faith for handing him a start by netting the equaliser from close range before converting from the penalty spot, although replays suggested Tom Lawrence was bundled over outside the box.
Pierre-Michel Lasogga fired Leeds into a deserved lead but a sixth defeat in their last seven games in all competitions, including three in a row at home, has heaped the pressure on boss Thomas Christiansen following the club's fine start to the season.