The Chelsea forward Mykhailo Mudryk has appealed to the court of arbitration for sport after he received a reported four-year playing ban from the Football Association for the use of a banned substance. Mudryk has not played a competitive match since November 2024 after he failed a drugs test while on international duty with Ukraine and began a provisional suspension . Under the terms of any four-year ban he would not be eligible for selection again until December 2028, but if an appeal to Cas were successful then the 25-year-old could possibly return next year. It is understood that the appeal was submitted in February of this year and it was confirmed by Cas in a statement released on Wednesday. “Cas confirms it has received an appeal by Mykhailo Mudryk against the FA,” it read. “The parties are currently exchanging written submissions, and a hearing is yet to be scheduled.” Details of the case have been kept away from the public eye, with the FA refusing to comment throughout the disciplinary process.…