Javier Hernandez hailed the latest comeback by Manchester United in the 3-2 win at Aston Villa but knows there is room for improvement for the Red Devils.

Sir Alex Ferguson's side came from behind to win for the eighth time this season in all competitions after trailing 2-0 early in the second period. Hernandez was the inspiration after his half-time introduction, scoring twice and also seeing his shot deflect off Villa skipper Ron Vlaar for the other United goal.

But, although United's never say die qualities have not been in doubt, the Mexican is aware United have to stop conceding so many goals. He said: "Thankfully we got the three points. But we need to improve as well because we're conceding a lot of goals. We're very happy, we need to improve and this result is going to give us a lot of confidence."

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