Samuel Iling-Junior has joined Boro on loan from Aston Villa until the end of the season.
The 21-year-old spent the first half of the campaign with Serie A side Bologna, making 16 appearances in all competitions.
Iling-Junior, who is most adept as a winger or wing-back, played in all eight of Bologna’s league phase matches in the Champions League, scoring once.
He signed for Aston Villa from Juventus last summer, having spent four years with the Italian giants, making 45 senior appearances.
The London-born player has been capped by England from Under-15 to U21 level, and was on the books of Chelsea between the ages of eight and 17.
He becomes the fifth senior arrival at Boro in the January transfer window.