Mykhailo Mudryk has reportedly passed a lie detector test as part of his efforts to clear his name amid an ongoing doping investigation, according to a senior figure at his former club, Shakhtar Donetsk.

The 24-year-old Chelsea winger is currently provisionally suspended from all footballing activity after testing positive for the banned substance Meldonium, a development first confirmed late last year. Mudryk has firmly denied any wrongdoing and is determined to prove his innocence. He has not made an appearance for Chelsea since November.

At the weekend, the Ukrainian international appeared to hint at his frustration with his situation by leaving a cryptic comment under one of Chelsea’s social media posts, while he awaits the outcome of the analysis of his 'B' sample, which will either validate or contradict the initial ‘A’ sample result.

In a recent development, Shakhtar Donetsk chief executive Sergei Palkin has revealed that Mudryk has voluntarily undertaken a polygraph test, which he successfully passed, in a bid to strengthen his claims of innocence.

Speaking exclusively to GIVEMESPORT, Palkin said:

"I have spoken with Mudryk on several occasions since this matter emerged. He is completely baffled as to how this situation has arisen. He has absolutely no idea.

"As part of his efforts to demonstrate that he did not knowingly commit any wrongdoing, his legal team arranged for him to take a lie detector test, which he passed. This will form part of the body of evidence to support his case.

"Mudryk has always maintained that he is not at fault for this positive test. The pressing issue now is to establish precisely how this happened, and if another party is involved. His lawyers are actively pursuing this.

"As things stand, the outcome of the B-sample analysis is still pending, so the case remains open. Nobody knows exactly what has occurred. I wish Mudryk all the very best — he is a consummate professional and a thoroughly decent person. He deserves to be protected."

Palkin also pointed to the financial implications for Shakhtar, given that the club still stands to receive performance-related add-ons linked to Mudryk’s £88 million transfer to Chelsea in January 2023.

"Shakhtar has a financial interest in this matter as well," Palkin added. "There are substantial bonuses tied to his appearances and performances, and if he is unable to play, we could potentially lose around €30 million. In essence, Shakhtar, Chelsea and Mudryk are all in the same boat. We are united in our support for him, and we all hope he is cleared to return to the pitch soon."

Mudryk has found it challenging to establish himself since making his high-profile move to Stamford Bridge, having scored just 10 goals across 79 appearances for the club. At the time his suspension was imposed, he had yet to open his Premier League account for the 2024-25 campaign.

Should the positive test be upheld, the Ukraine international faces the prospect of a lengthy ban, similar to the punishment handed to former Manchester United midfielder Paul Pogba, who initially received a four-year suspension for a doping offence. Pogba’s ban was later reduced to 18 months on appeal.

Following news of his provisional suspension, Mudryk released a statement via Instagram to address his supporters:

"I can confirm that I have been notified that a sample I provided to The FA contained a banned substance. This has come as a complete shock, as I have never knowingly used any banned substances or broken any rules, and I am working closely with my team to investigate how this could have happened.

"I know that I have not done anything wrong and remain hopeful that I will be back on the pitch soon. I cannot comment further at this time due to the confidentiality of the process, but I will share more details as soon as I am able."