Mudryk has been suspended since December 2024 after testing positive for the banned substance meldonium.
The suspension was set to last for four years, but the Ukrainian appealed to the Court of Arbitration for Sport (Cas), which announced on Friday that the verdict had been overturned and that the 25-year-old was allowed to resume his playing career immediately.
"It has been an incredibly difficult period for 'Misha', both professionally and personally. We are delighted that the matter has now been resolved, allowing him to return to football with immediate effect," Chelsea wrote in a statement.
