Matty Longstaff was 'allowed' to train with Newcastle United despite his deadline-day loan switch to Mansfield Town as the League Two side do not have a match this weekend.
The Magpies academy graduate returned from a disappointing loan spell at Aberdeen last month, and was allowed to join the Stags on Monday until the end of the season.
Mansfield are the in-form side in League Two at the moment, winning eight of their last nine matches to sit sixth in the table.
