Manchester United boss Jose Mourinho is upset they failed to sign Bayern Munich midfielder Renato Sanches.
The Manchester Evening News says Mourinho wanted United to sign Sanches and the club had scouted the 18-year-old midfielder regularly.
But Sanches ended up joining Bayern Munich from Benfica on May 10 and United claimed Mourinho's predecessor Louis van Gaal did not want to complete a deal.
So United officials dithered over completing a transfer as they feared it would confirm Van Gaal's exit.
And they say United could have wrapped up the signing of Sanches the week before he joined Bayern.