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Daniel Farke's team, which lost 4-3 to Newcastle United in dramatic fashion in its most recent Premier League outing, ensured there was no cup upset at Pride Park.

Ben Brereton Diaz had put Derby ahead in the first half, scoring just two minutes after Joel Piroe had missed a penalty at the other end.

But Leeds showcased its top-flight quality after the break.

Gnonto slammed home with a venomous first-time finish in the 55th minute.

Tanaka then tucked in from point-blank range after Jacob Widell Zetterstrom parried out Piroe's shot.

Derby failed to test Karl Darlow in the Leeds goal from then on, and Justin added further gloss in stoppage-time by side-footing in his first Whites goal.