The young striker has been in fine fettle for our Under-23s since joining from Bury in the summer, ten goals to his name this season as Boro lead the way in the PL2 including our Mercedes-Benz Teesside Goal of the Month winner for November.

Miller has also featured for Boro's First Team, as a late substitute in the Carabao Cup against Aston Villa.

He joins the Welsh club's promotion charge in the National League, with the Red Dragons level on points with Sutton United at the top of the table. They face fellow title hopefuls Macclesfield Town away at the Moss Rose on Saturday.

The loan is subject to international clearance.