The United no.1 feels the defender will make a real impact at Old Trafford after sealing his move from Sporting Lisbon and revealed he will help him learn English in his new environment.
"It's always great when a new Spanish speaker joins the club," the keeper told ManUtd.com. "I've just met him at training and he seems a really nice lad.
"I think he'll bring a lot to the side because he is a quality player. What I like about him is he brings the ball out of defence and plays it on very well. He is comfortable on the ball."
De Gea confirmed he is in a good position to assist in teaching Rojo the language as he is feeling more and more assured conversing in English with his colleagues.
"We do help each other out," he stated. "Juan [Mata] and Ander [Herrera] of course but now, with Rojo, he is going to be the one who needs a bit of extra help as he doesn't speak any English at all and has just arrived.
"So we'll be around and there for him to be his translator if he needs it. He will learn pretty quickly and it will all be fine. I've got it pretty much under control and am quite confident with my English now.
"English has always been the language of the team on the field because we have so many English-speaking players here, so it's understandable the manager's idea is that he wants it to be spoken around here."
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