Morgan was booked for the challenge during the match at Oakwell on 8 November when Hume suffered a fractured skull.

An FA spokesman said: "When judging whether to take disciplinary action in this case, The FA has had to consider the challenge itself and not the outcome of it.

"The FA has been given express direction from FIFA that we cannot upgrade yellow cards to red. On this basis, we can only bring additional charges in the most exceptional cases and only if it can be proved beyond doubt that the actions of a player were a deliberate attempt to injure an opponent.

"Having reviewed all available evidence in this case, including submissions made by Barnsley, there is no basis on which an additional charge could brought."

Barnsley are considering taking legal action against Morgan over the challenge which left striker Hume with a fractured skull.

Barnsley are keeping their options open after admitting they were "extremely disappointed and concerned" that the FA was taking no action.

"The decision by the FA to disconnect a violent act from its consequences runs contrary to the principles of civil and criminal law," a statement on the club's official website read.

"The FA's failure to act has let Iain Hume down badly and the only option now remaining is for recourse outside of the normal football processes."

For full story read Wednesday's Yorkshire Post.