Barry Joel Polyak, the lawyer for WikiLeaks founder Julian Assange, is set to argue on behalf of Nicolas Maduro.

According to US federal court records, Maduro has appointed Polak to represent him, the BBC reported. Polak is a prominent lawyer who has long represented Assange in the case.

Polak is seen as a key figure in the legal battle against Assange's extradition to the US. The high-profile appointment comes as Maduro faces a series of legal challenges in the US.