Manchester United defender Luke Shaw admits they're struggling in attack this season.
Shaw was speaking after their 2-0 defeat at West Ham.
On their lack of goals, he said: "I don't know.
"It's tough to think what's going on. I think we're not creating enough and when we do, on the other hand, we're not clinical.
"I think maybe it could be a lack of confidence at the moment, sometimes that's normal in football and it happens, but we have to try stay positive because we've got another big game coming up against Aston Villa."