'Embarassing officiating; a shambles'

We asked for your thoughts on Wilson Isidor's controversial disallowed goal against Derby on Tuesday.

Here are a selection...

Jon: Goal. Ref who was closest to the action didn't blow for an infringement, linesman never raised flag for offside, presumably fourth official communicated through earpiece- what does he spot from the halfway line that the ref and linesman combined don't see? Embarrassing officiating.

Lewy: The "ghost" goal at Derby was a shambles in the way it was dealt with. The linesman didn't raise his flag at anytime during the build up, the actual goal or afterwards, disgraceful really.

Chris: The officials were caught napping - definitely not offside.

Andy: An explanation is needed from the officials to how they came to that decision.

Moz: Was it VAR by stealth? Referee was in the best position to see everything and didn't originally disallow the goal. No offside flag, I assume because there wasn't an offside to give. My only thought is that the fourth official spotted something on the monitor and got a message out. Unbelievable Jeff!!