The Whites are on the verge of ending their 15-year exile from the Premier League, with eccentric 63-year-old Bielsa guiding them to second in the Championship with four games left.
However, Bielsa’s future has been the subject of intense speculation – particularly if Leeds were to falter in their bid for promotion.
Reports in Argentina have linked him with a return to Newell’s Old Boys, but Bielsa’s brother has quashed those rumours.
Rafael Bielsa, who is also a sports lawyer, told La Capital: “Marcelo cannot go back to Newell’s because he has a contractual problem. I made the contract.