Newcastle boss Steve Bruce says he will do his do his "utmost" to find "the culprit" who leaked a training ground row with Matt Ritchie to the media.
Bruce said he was "disappointed" the story had been leaked and "caused a frenzy, which we could do without".
"The row with [Ritchie] is right, but the rest is nonsense." he added.
Bruce said training ground rows "happen up and down the country, every other week at clubs, but it doesn't get out".
He added: "Unfortunately, the journalist has a source in and around the club who feeds him.