Nou Camp star in battle to face Bernabeu club in Champions League.
Barcelona midfielder Andres Iniesta has appealed the proposed ban that would see him miss the Champions League semi-final against Real Madrid.
The 26-year-old was booked during the first-leg of quarter-final tie with Shakhtar Donetsk, which ruled him out of the return leg.
But the match officials have alleged he deliberately picked up the yellow card to give him a clean sheet for the game against Los Blancos.
But Barcelona have disputed these claims leaving Uefa to decide on Wednesday if the playmaker will receive an extra match suspension.
If Iniesta was banned he will miss the first-leg against the La Liga rivals at the Bernabeu on April 27.
“FC Barcelona have submitted an appeal to Uefa against the proposed imposition of an additional game suspension for Andres Iniesta following the yellow card he picked up against Shakhtar at the Nou Camp on April 6th,” a club statement read.
“FC Barcelona believe that the arguments outlined in their appeal, based on the good faith of the player and the disproportionate nature of the proposed sanction, will be sufficient to rebut these allegations.”