Manchester United boss Jose Mourinho is convinced there's a mole inside the dressing room.
He is desperate to discover who has been revealing which players he has picked — sometimes the night before a Premier League game.
The Sun says a fan has been receiving texts detailing Mourinho's chosen starting line-up ahead of every fixture this season.
They were shown a message predicting United's team three hours before they played Ukrainian side Zorya Luhansk on September 29.
It correctly named ten of the 11 starters.
A source said: “Mourinho is spitting feathers after ­discovering he's being betrayed by someone within the club.
“This sort of information is gold dust for opposition managers and gamblers."