England are determined to build on their Twenty20 success by maintaining their ruthless approach against Bangladesh in today's opening match of the tri-nations NatWest Series.

Just days after completing a memorable 100-run triumph over Australia to lift spirits for this summer's Ashes series, England now face a test of character as they attempt to lift themselves against the world's worst one-day side at the Oval.

It will be a different atmosphere from the frenzied support they enjoyed at the Rose Bowl on Monday with only 15,000 advance sales from a 23,000 capacity, but England intend maintaining their intensity in preparation for bigger challenges ahead.

"That's a test of our team," said opener Marcus Trescothick, who becomes England's tenth player to make 100 oneday international appearances just five years after making his debut at the same ground against Zimbabwe.

"It's up to us to remain disciplined and focused on the job. The main focus is the end

of this NatWest series, making sure we're in the final and making sure we're doing well and building up to that situation.

"That's up to us to make sure we're right in the changing room and we have a right mindset when we go out onto the pitch. We have improved in that and you can see that in games against Bangladesh and Zimbabwe and teams lower down the order. We've got a much better focus.

"It also works on the other side of it when there are tough situations in a game. Because we're mentally more focused on those occasions,

we're able to switch on and do it when it doesn't count as much or is needed as much."

The next situation when they will need that mental strength is not expected until Sunday, when England play their second game in the tournament against Australia in Bristol.

England will be hoping their opening success is a sign they finally have the confidence to stand up to Australia, having also completed a six-wicket victory in last summer's ICC Champions Trophy semi-final at Edgbaston.

"Everybody's been a little bit in awe of the Australian team, but over the last 18 months we've gained the confidence to stand up and be

proud of what we've done and possibly try to compete with the best team in the world," said Trescothick, one of the architects of Monday's win with 41 off only 37 balls.

"The most important thing is not that we've beaten them in two one-day games. How we've done over the last 18 months is the most important thing for us.

"We've built a team spirit and a unity with extra work and extra disciplines in our team and that will stand us in better stead than looking at the two one-day games we've played against them.

"I don't think we'll get carried away. We're not going to sit back and think we've done the job and we're going to come back even stronger at Bristol."

By the time Trescothick faces Australia's green and gold one-day kit again, he will have joined a select club of England cricketers to have made a century of appearances at this level having been handed his debut five years ago as a replacement for the injured Nick Knight.

Since then he has scored eight centuries, including a superb 104 in last summer's ICC Trophy final defeat against West Indies. World's best tee up for US Open - Page 30 ..SUPL: