The Football Association have requested a copy of Sir Alex Ferguson's post-match interview with MUTV from Tuesday's encounter with Chelsea at Stamford Bridge.
Ferguson will learn by 4pm on Friday whether he will be charged with improper conduct for his attack on referee Martin Atkinson.
Although the United manager's comments on Sky Sports were critical of the official, it is the ones to his club's own in-house station where the FA believe he may have crossed the line by raising a question about Atkinson's integrity.
The FA have no power to order MUTV to hand over a copy of the interview but feel it would be in Ferguson's best interests as it can often bring comments into context that look harsh on the printed page.
It does however raise the prospect of Ferguson ending up getting a touchline ban thanks to evidence provided by his own club.
Although the United boss might have kept his counsel on Wednesday and reflected on the changing fortunes of a game that should left him playing with just 10 men at Wigan three days earlier, Ferguson opted to let fly with both barrels following a loss to Frank Lampard's controversial penalty.
Ferguson labelled that decision, for Chris Smalling's foul on Yuri Zhirkov "soft" but it was the failure to send David Luiz off for a clear trip on Wayne Rooney after the Brazilian had already been booked that really annoyed the Scot.
"You want a fair referee, or a strong referee anyway - and we didn't get that," he said. "I must say, when I saw who the referee was I feared it. I feared the worst."
Given the United boss already has the remaining two matches of a four-game touchline ban hanging over him following scathing comments about Alan Wiley's fitness last season, a further spell in the stands appears inevitable if misconduct is proved.
It will not come into effect before Sunday's trip to Liverpool though as a "non-standard" case such as a manager's media comments is not heard with the rapidity of a normal case under the FA's fast-track disciplinary system, which means it is likely to be next week before any ban could be imposed.
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