Allardyce has been keen to boost his attacking options and believes Armstrong fits the bill.

Armstrong has signed a short-term deal after passing a medical at the Reebok Stadium.

Allardyce is delighted to have a player of his experience on board.

“With the transfer deadline coming at the weekend it was vitally important to bolster our squad,” he told the club’s website, www.bwfc.co.uk.

“I am absolutely delighted to be bringing Chris here. He is a highly experienced player with a marvellous track record of scoring goals in the top flight.

“At the moment he is about six to eight weeks behind the rest of the squad in terms of fitness but will become an integral part of the team.”