English Premier League side, Manchester United, paid £8.4 million (about N3.8 billion) to former manager, Louis van Gaal, and his coaches after they were sacked in May.
United are also understood to have written off £6.7 million (about N3.01 billion) on ex-Germany captain, Bastian Schweinsteiger.
They have however not said the sum relates to the midfielder.
But it is understood Schweinsteiger was only named in their domestic squad because of Premier League rules and is very unlikely to play for United again.
The Old Trafford club posted a record annual revenue of £515.3 million on Monday.
Van Gaal and his coaching team were dismissed 48 hours after leading United to victory over Crystal Palace in the FA Cup final.
Assistant manager Ryan Giggs subsequently left following Jose Mourinho’s appointment as Van Gaal’s replacement.
Mourinho left Schweinsteiger out of his Europa League squad and has told the 32-year-old he has only the remotest chance of playing this season.
The Portuguese manager has said he would promote youngsters into his squad should injuries or suspensions affect his central midfielders.
It is now known that the former Bayern Munich player only retains that chance because Premier League rules forced United to do so.
The club can only name any player over the age of 21 in their squad if they had room within their allotted 25 places.
The situation surrounding the German means United no longer think they will get their money back on the player.
He was originally signed for a fee believed to be in the region of £11 million and they have now written off the £6.7 million they had been valuing him at.
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