Rio Ferdinand has hailed the form of Manchester United's defence this season.
Ferdinand said: "I said when I first signed for United that when we got a settled back four we would see the benefits as individuals and collectively. That's what we're seeing at the moment.
"It takes time to get used to playing alongside some players, but myself and Vida hit it off quite quickly. Our styles just gelled, it's as simple as that," he told MUTV. "There are some players that happens with, and long may it continue."