Sheffield United have offered highly-rated Newcastle United defender Jamie Cobain a development squad trial.
The 18-year-old, who plays at right-back, has made five appearances for the Premier League side's reserves this season.
Cobain, who turns 19 tomorrow, recovered from problems with injury to force his way into the Magpies' reserve side after impressing Academy coaches.
Cobain posted on Twitter earlier today: "Starting my first ever loan today at Sheffield United. Looking forward to all the games!"
He later deleted the tweet, before Nigel Adkins confirmed that Cobain would join on a trial basis and play for United's U21s against Brentford tomorrow.
The defender signed a three-year scholarship deal with Newcastle last July. United face Fleetwood in the Johnstone's Paint Trophy tomorrow.