Tour match, Chittagong, Day one of three: Bangladesh A 202 all out v England 68-3
Tredwell boosted his England Test chances with his performance
Kent spinner James Tredwell put himself in contention for a place in England's Test side with a superb six-wicket haul in the warm-up game with Bangladesh A.
Tredwell took 6-95 off 27.3 overs and seamer Steven Finn took 2-13 off seven as the hosts were bowled out for 202.
But while Tredwell took his chance to impress on day one of England's three-day warm-up game before Friday's first Test, Kevin Pietersen again failed.
England closed on 68-3, Pietersen making just two to extend his poor run.
This time he lasted just five balls before his troubles against left-arm spin again reared their head and Mehrab Hossain had him caught at the wicket.
Pietersen has managed just 49 runs (nought, six, one, 18, 22 and two) in six innings since arriving in Dhaka, after making 43no and 62 in the two Twenty20 matches in Dubai.
"Kevin is a top batsman, we know that, and I don't think a couple of low scores should affect that," said Tredwell later.
"We know he'll keep working hard and I'm sure a big score will be just around the corner."
Michael Carberry, hoping to partner Alastair Cook in the first Test in the absence of Andrew Strauss, was floored by a nasty blow to the box in the second over and dismissed lbw for five moments later.
Cook, after hitting three fours, was also out lbw for 19, with Jonathan Trott - another potential opening option for the Tests - the only batsman to prosper, finishing the day unbeaten on 32.
Paul Collingwood was rested after having a cortisone injection in his shoulder but his availability for Friday's first Test is not thought to be in question.
With Graham Onions and Stuart Broad both missing the match because of back injuries, and Ryan Sidebottom out of the Test series altogether, England came into the match short of bowling options.
Graeme Swann was rested, leaving Tredwell as the tourists' only specialist slow bowler, but he took his chance in spectacular fashion.
Bell's superb catch gave Tredwell his first wicket
Ajmal Shahzad was given the new ball and claimed the first wicket, having Junaed Siddique caught behind with 21 runs on the board, before Tredwell opened his account when Ian Bell's superb catch accounted for Shamsur Rahman.
Finn, less than 24 hours after arriving in Bangladesh, saw his first ball in an England shirt slashed to the third-man boundary but then restricted the batsmen to just one more run in the next 23 balls.
Liam Plunkett removed the stubborn Mehrab Hossain to have the home side on 71-3 at lunch, before captain Mohammad Ashraful became the second victim of the Bell-Tredwell combination, having scored just one run.
Roqibul Hasan was the one batsman who seemed immune to Tredwell, smashing three sixes off the spinner and many of the 15 fours that lit up a splendid unbeaten 107.
But while Roqibul prospered at one end, England made regular breakthroughs at the other.
Swanny is obviously going to play in the first Test and now hopefully I've just put myself out there for selection
Tredwell, who travelled to New Zealand with the one-day squad in 2007/08 and was summoned to South Africa over the winter without making an appearance, claimed a third scalp when Finn caught Shuvogoto Chowdhury for nine, reducing the hosts to 97-5.
Successive fours by Shahagir Hossain helped them into three figures before Finn tempted him to edge a chance to Matt Prior for 12.
Five balls later the same pairing claimed the wicket of Dollar Mahmud, without scoring.
While Roqibul kept the innings alive to reach his century, Tredwell polished it off with the wickets of Nur Hossain (six), Syed Rasel (one) and Robiul Islam (four).
"Obviously you want to come into these games and bowl well and hopefully I did that," Tredwell added.
"I maintained a consistent line and length, got a few revolutions on the ball and found that bit of turn.
"This is my third tour and this is my first game (in the longer format). So it's nice to get out in the middle and show what I can do.
"Swanny is obviously going to play in the first Test because he's done very well in the last 12 months and now hopefully I've just put myself out there for selection."