Suarez, whose goal gave Barca a 1-1 draw against Atletico Madrid at the Camp Nou on Tuesday that saw them progress 3-2 on aggregate, was sent off late after picking up a second booking for elbowing Koke.

It means he will miss the final against either Alaves or Celta Vigo on May 27.

"FC Barcelona will appeal when the competition committee views the referee's report," said the Catalans in a statement.

After the match, Suarez had said of his challenge with Koke: "It isn't even a foul."

But he retained little hope of being exonerated.

"We already know how these things go.

"That is why I am so angry because it was absolutely nothing."

Barca have won the Copa del Rey in each of the last two seasons.