UPDATE 1-Soccer-England midfielder Downing completes Villa move

* England winger moves for 12 million pounds

* Premier League vital for World Cup hopes says Downing

(adds detail, quotes)

By Mitch Phillips

LONDON, July 16 (Reuters) - Winger Stewart Downing completed a 12 million pounds ($19.69 million) move to Aston Villa on Thursday, saying it was essential to play in the Premier League to achieve his England aspirations.

Downing, who arrived at Villa's training ground on crutches because of a broken foot that will keep him out of action until September, completed a medical and signed a four-year-deal.

The left-sided midfielder, who turns 25 next week and has 22 England caps, said his desire to play in next year's World Cup finals was a major factor behind his move after Middlesbrough's relegation from the top flight last season.

"Leaving Boro feels strange because I've always been at the club. I supported them when I was young and I'll always be a fan," Downing, who joined Middlesbrough as a trainee, told the club's website (www.mfc.premiumtv.co.uk).

"But I hope the fans will understand that I'm ambitious and want to win things. This move gives me a chance of that.