Plymouth Argyle have signed Middlesbrough teenager Ben Gibson on a three-month loan deal with a view to an extension.
Gibson will join up with England Under-18 team-mate Curtis Nelson at Home Park.
The 18-year-old left back has only made one first team appearance for Middlesbrough and has moved to the south coast to gain some first team experience.
Argyle acting chairman Peter Ridsdale said: "We have agreed a deal for Gibson, initially on a three-month youth loan.
"It is with a view to extending it further, should he like us and we like him."