Nottingham Forest manager Steve Cotterill struggled to find any positives after his side were beaten 4-0 at the City Ground by rampant Leeds.
Robert Snodgrass, Jonny Howson, Luciano Becchio and Adam Clayton were on the scoresheet for the Yorkshire club.
Forest have dropped into the Championship relegation zone on goal difference and Cotterill, who saw Andy Reid sent off for a second yellow card late on, said: "It's difficult to try and find positives when you lose 4-0.
"It's not an easy night. We made individual errors and got punished for them. The third goal knocked the stuffing out of us just after half-time.
"Anything that could have gone wrong, went wrong. We will have to carry on working."