Middlesbrough have brought in Bruno Zuculini on a one-month loan deal from Manchester City.
The 22 year-old joined Manchester City from Argentinian side Racing Club in August 2014 but has found his first team opportunities limited at the Etihad Stadium this season.
Zuculini has gained eight caps for the Argentina Under-20 side and spent last season on loan at La Liga clubs Valencia and Cordoba.
Aitor Karanka was believed to be keen to bring in a midfield player as cover for the injured Adam Forshaw.
Middlesbrough have started this season brightly and are currently sitting in 4th place in the Championship. They face Charlton at The Riverside on Saturday.
