Ryan Giles has returned to the club on loan until the end of the season.
The 24-year-old joins from Hull City.
Ryan’s previous loan spell with Boro during the 2022/23 campaign saw him deliver 12 assists in a season that saw the club reach the Sky Bet Championship play-off semi-finals.
His form that season led to Premier League newcomers Luton Town strike a deal with parent club Wolves for his services, but he made just five top-flight starts before joining Hull on loan last January.
The loan move was made permanent in the summer with Hull agreeing a seven-figure deal with Luton, but he has found appearances limited and arrives back on Teesside relishing the prospect of playing for the Boro once again.
The former Wolves youngster has no shortage of experience, having made over 200 career appearances, and he will add further strength to Michael Carrick’s squad.