LEICESTERSHIRE fast bowler Stuart Broad has been added to England's Commonwealth Bank Series squad for the best-of-three finals against Australia.

Broad has been at the MRF pace bowling foundation in Chennai (Madras) and is set to arrive in Australia tomorrow with Jon Lewis (Achilles) and Chris Tremlett (back) returning to the UK.

The 20-year-old will effectively be available for the first game against Ricky Ponting's Australians at the 95,000-capacity MCG on Friday.

Injuries have plagued England's triangular tournament with Kevin Pietersen forced home with a broken rib and James Anderson told to rest his troublesome back ahead of the World Cup.

Coach Duncan Fletcher said: "Chris has got a back injury that will definitely prevent him taking any further part in the finals, while Jon Lewis was another we were not prepared to risk so they are going to go back."

Despite being overlooked for this campaign, Broad is in the reckoning for a World Cup spot.

He was two days into a 10-day programme in India, set up by England bowling coach Kevin Shine for those named for the A tour of Bangladesh.

Broad played a handful of one-day internationals against Pakistan last September but lost out to Tremlett in the selection stakes here.

Meanwhile, Michael Vaughan, yet again a doubt for the first of the best-of-three matches due to a recurrence of his hamstring injury, has urged England to maintain their winning principles for the one-day finals against Ashes rivals Australia.

Yesterday's 14-run victory over New Zealand sent the squad to Melbourne for Friday's latest meeting with Ricky Ponting's side this winter.

"I don't think you can play with too much of a free spirit in the final, you are playing Australia at the MCG - it is going to be a full house of 90,000," said Vaughan.

"The lads have got to take the momentum from the last two performances and play good basic cricket.

"With the batting, one player has got a hundred and given us the chance to get a good total and in the field we have hunted in packs.

"We have tried to work a few things out. We have to take all the things from the last two games into the finals and if we produce that kind of performance we should put Australia under some pressure."

The end of the Commonwealth Bank Series turned into something of a knockout scenario - England won two matches to stay active this week - which Vaughan views as valuable ahead of the World Cup.

"We want to win the final and end the tour on a good note but what was really impressive about this was what we could have in a few weeks time in the World Cup - one-off games to get through to the next stage," said Vaughan. "We have turned up and withstood the pressure with some young players which is a really positive sign.

"Now we have the chance to play the world champions in a final and who is to say that might not happen on April 28, so it is a great opportunity to test our mental strength and techniques and skills."

Paul Collingwood's return to form, resulted in a third one-day hundred and laid the foundation for a score of 270-7, after Vaughan won the toss on his comeback.

"It was long overdue," said Collingwood, who also claimed two wickets with his medium pace on his way to a man-of-the-match award.

"I have had a bit of a dip in form and it has been hard to get out of that. But playing on a good wicket, with a pretty big outfield suited my game.

"I got plenty of twos but I think the positive intent was better and I backed myself from ball one."

Despite putting on 81 for the first wicket and Stephen Fleming matching Collingwood's 106, New Zealand were strangled under the Gabba floodlights.

Having picked up confidence from thrashing Australia in Sydney last Friday, the chasm between the Ashes rivals earlier in the winter appears to have narrowed.