An ousted Federation Internationale de Football Association official is due to testify at a British parliamentary hearing on Wednesday about the "pressure and interference" experienced while overseeing governance reforms.
The global soccer body has been trying to overhaul its operations in the wake of the worst crisis in its history, sparked in 2015 by the indictment in the United States of several dozen soccer officials on corruption-related charges.
Maduro, who was joined in being ousted by the independent chairmen of the organisation's ethics committee - which was also investigating Mutko - claimed he was sacked because "we really took seriously our role of the independent scrutiny". Samoura wrote to Collins warning that Borbely is prevented from appearing at the digital, culture, media and sport committee because he is still bound by the Federation Internationale de Football Association ethics code and Swiss civil and criminal law. His evidence could throw a fresh spotlight on FIFA President Gianni Infantino's leadership of soccer.
Neither FIFA nor Infantino could immediately be reached for comment.
His responsibilities had included conducting eligibility checks on candidates for places on Federation Internationale de Football Association committees.
Miguel Maduro provided an account to British legislators of the pressures he endured from the Federation Internationale de Football Association hierarchy during less than a year chairing the governance committee before being abruptly removed from his post in May. "I think that ultimately, he (Infantino) chose to politically survive".
"(Infantino) expressed concerns about the impact of the decision (to ban Mutko) on the World Cup", Maduro said.
Mutko was barred by the governance committee because his position in Russian Federation contradicted its statutes concerning political neutrality.