Manchester United have confirmed the signing of Marcos Rojo.
The defender has been handed the vacant number five shirt at the club, previously worn by Rio Ferdinand.
He becomes United's third summer signing, following Ander Herrera and Luke Shaw, with the deal involving Nani joining Sporting Lisbon on a season long loan.
Rojo will be the fourth Argentine to play for United, following Juan Sebastien Veron, Gabriel Heinze and Carlos Tevez.
He will be available to feature for the Red Devils when they face Sunderland on Sunday.