Manchester United defender Chris Smalling admits he's been frustrated with his progress this season.

Smalling's campaign has been plagued by injury.

"It's one of a bit of frustration because I didn't really get going until November and I had a few little niggling injuries, so I've not been out on the field as much as I would have liked. But the team success has been very good and I've been able to contribute something to that, though not as much as I'd have liked. Ultimately it's about the team and the club, and we've been successful so I'm happy with that," he told