Australian coach Rod McQueen is keeping England opposite number Clive Woodward guessing by declining to name his side for this weekend's clash at Twickenham. McQueen had intended to name his side after yesterday's training session in Bracknell, but decided to sleep on it for another night."A couple of my first choice selections are still doubtful and I didn't see the need to rush into naming the team only to change it later," said McQueen."Our full back, Steve Larkham, has a slight muscle strain and is still doubtful. There are also a couple of other combinations I want to take a closer look at and I will do so tomorrow morning."The news that Larkham may miss the match will come as a major blow for the Wallabies, who are already suffering a crisis amongst their backs.Influential out-half David Knox has already flown home after dislocating a finger in Saturday's Test defeat against Argentina. And Matt Burke, Jason Little and Daniel Manu, all part of the Wallabies side that beat England 25-6 in July, failed to prove their fitness for the tour."We have got 13 injuries coming into this match and losing Knox is a major downer," groaned McQueen. "However, it does give us a precious chance to blood a few new names in some big matches," he added.