Manchester United defender Chris Smalling says this season hasn't been good enough.

United have failed to score in four of their last six games and finished the season with a stalemate at Hull City.

"I think it could have been a lot stronger [the end to the season] and it should have been, especially in the games where we were on top," he told MUTV.

"But it shows the margins and if you don't take your chances then you can really be cut apart in games."

Smalling added: "We're all looking forward to that [being back in the Champions League] and it gives us an incentive to come back in pre-season and really hit the ground running."