Scan results confirmed today that Shay Given suffered a small tear in his left hamstring in Saturday's Barclays Premier League game against Manchester United.
The injury to the 35-year-old Villa and Republic of Ireland international goalkeeper will leave him sidelined for a month and American No.2 Brad Guzan will take his place for Saturday's game against Bolton Wanderers at the Reebok.
"It is disappointing to lose Shay in such circumstances but, unfortunately, these things happen in football," said Villa manager Alex McLeish.
"We have to meet these challenges and we will. We have total faith in Brad who, as I said after the game against Manchester United on Saturday, can be proud of the way he stepped in when Shay had to come off.
"We will need within the football club for everybody to stick together and that strength of unity will help massively."
The club are awaiting results of a scan undergone by Jermaine Jenas, the on-loan midfield player from Tottenham who was also stretchered off during the weekend game against the Barclays Premier League champions.
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