JASON Robinson has joined the list of early Lions tour casualties after twisting his ankle in training today.

And he was among a handful of players who sat out the afternoon session as preparations continued for Friday's tour opener against Western Australia.

Lions coach Graham Henry will announce the line-up in Perth on Wednesday morning, hoping that as many of his 37-man squad as possible can feature either this week or during the appointment with a Queensland President's XV in eight days' time.

The Welsh pair of prop David Young (calf) and flanker Martyn Williams (ankle) did not train today while Mike Catt (back), Jonny Wilkinson (groin) and Neil Jenkins (facial cut) avoided contact work.

Henry and assistant coach Andy Robinson are determined to look at everyone and Robinson has again underlining that all 37 players are contesting Test spots. "We are looking at everyone for the Tests, and will try and give everyone a chance to play as soon as possible," he said.

That will be music to the ears of Welsh back-row forward Colin Charvis who faces daunting competition from players like Lawrence Dallaglio and Richard Hill. But Charvis has pledged to give it everything in pursuit of Test honours.

"My main goal is to give 100 per cent, and buy into everything that this squad is about," Charvis said.

"If I give my all then I know as my greatest judge that there is nothing more I could have done."

At 28 Charvis has carved out a reputation as one of the most destructive tacklers in British rugby.

But he is brutally honest about the step up in standards he expects to encounter on the 10-match trip.

"I believe that the Lions' level of play will be above myself, it's just how quickly I can grow into it and that is a challenge I am really looking forward to.

"If I am not good enough to make the Test team then I will be the first to admit it, but it is a case of seeing how well I can play.

"Everyone is pretty much refuelled and raring to go. This is a fantastic opportunity and if it takes every ounce of energy then so be it."