Real Madrid have been thrown out of the Spanish Cup after fielding an ineligible player in their tie against third-tier side Cadiz on Wednesday, the Spanish Football Federation confirmed on Friday.

Madrid began the game with Denis Cheryshev, who scored the opening goal in the 3-1 win, in their starting line-up even though the Russian should have been suspended after he received three yellow cards in the competition for Villarreal last season.

The federation's competition committee judge ruled that the player was "ineligible...so the match is resolved in favour of Cadiz".

He also slapped Real Madrid with a fine of 6,001 euros ($6,520).

Real Madrid president Florentino Perez said Thursday that the club "is not at fault" and would not be disqualified from the competition because Cheryshev had "not been personally notified" that he was suspended.

Perez also argued that according to the club's interpretation of the competition's by-laws, previous bookings are voided at the start of the round of 32.

The head of the Spanish league, Javier Tebas, earlier on Friday said he felt the possible disqualification of Real Madrid over the affair "seemed a bit disproportionate".