Rugby World Cup 2015: Wales can be 'silent assassins' - Marshall
|Rugby World Cup|
|Hosts: England Dates: 18 September-31 October|
|Coverage: Live on BBC Radio 5 live and sports extra, BBC local radio, plus live text commentary on every match on the BBC Sport website.|
|Further coverage: BBC Radio Wales, BBC Radio Cymru, BBC Radio Scotland, BBC Radio Ulster and BBC Local Radio.|
Former New Zealand scrum-half Justin Marshall believes Wales will relish their underdog status at the World Cup.
The Welsh will be vying with England and Australia to top Pool A, which also includes Fiji and Uruguay.
Injuries to backs Leigh Halfpenny, Rhys Webb and Eli Walker have disrupted preparations but Marshall refuses to discount Warren Gatland's side.
"They've got an opportunity to be that silent assassin team because they've slightly been written off," he said.
Full-back Halfpenny and scrum-half Webb, both 26, are out of the tournament after suffering knee and foot injuries respectively in the warm-up win over Italy.
Winger Walker is also out with a hamstring problem.
|More from rugby:|
|Get World Cup alerts direct to your phone|
|Rugby World Cup 2015 schedule|
|For the latest rugby union news, follow @bbcrugbyunion on Twitter|
"What a great opportunity for Warren Gatland and [captain] Sam Warburton to get together and go 'they've kind of written us off, let's sneak into Twickenham and ambush England and let's put the sword to Australia," former Ospreys scrum-half Marshall told Sport Wales.
"I'm very much watching with great interest as to Wales' performances in the pool stages as they could upset and they could qualify."
Watch the full Justin Marshall interview on Sport Wales' Rugby World Cup special on Thursday; BBC Two Wales, 19:00 BST. Available on iPlayer for seven days after transmission.
|Wales' World Cup pool games|
|Sunday, 20 Sept, 14:30 BST: Wales v Uruguay, Millennium Stadium|
|Saturday, 26 Sept, 20:00 BST: England v Wales, Twickenham Stadium|
|Thursday, 1 Oct, 16:45 BST: Wales v Fiji, Millennium Stadium|
|Saturday, 10 Oct, 16:45 BST: Wales v Australia, Twickenham Stadium|