Former Manchester United defender Paul McGrath rates Marcos Rojo a "class act".

McGrath is convinced Rojo is a long-term prospect for United.

He told manutd.com: "I watched him in the World Cup last summer and I thought then, before he signed for United, that he is a class act.

"I like the way he plays football - he's not afraid to make a pass and he's not afraid to receive one, although he's perhaps more of an out-and-out defender than some of the others who like to move forward with the ball."