He said: “Rio has been great for us and is improving all the time. He is getting consistency and concentration in his game. Maybe as a younger lad he was a bit casual and easy-going and relied on his pace and balance to get him out of situations.
“In terms of the variety of his attributes you would have to say Rio is one of the most complete defenders around; good balance, electric pace, great technique, he’s 6ft 4in’ he has everything you’d ask for in a central defender. We hope Rio and Vidic can be a defensive foundation for years to come.”