Despite their worst fielding display in recent memory, the Bangladeshi bowlers created a final opportunity to win the game but opener Tamim Iqbal's second one-day fifty was not enough to stop the visitors from drowning into a second 3-0 whitewash after their Test blackout.

Bangladesh's top-order batting misery remained as they were bundled out for 157 runs in 37.1 overs in reply to Sri Lanka's 196 in the 40-overs-a-side match.

After confirming their series victory in the previous game, Sri Lanka only had an academic interest in the game, wholly reflected as skipper Mahela Jayawardene preferred to deploy his reserves against a team that had lost all their confidence following one embarrassing defeat after the other.

Bangladesh captain Mohammad Ashraful won the toss and put his opponents into bat in difficult conditions after the match started more than two hours late from the schedule start, following overnight and early morning rain.

The bowlers responded brilliantly to reduce the Lankans to 61-4 but man-of-the-match Jehan Mubarak snatched the initiative as he made 72 off 82 balls. He put on a 78-run stand with Tillakaratne Dilshan (39) for the fifth wicket.

But it could have been a different story had Abdur Razzak not dropped the lanky left-hander off Forhad Reza when he was just on 17. The fact remained that the Bangladeshi fielders, including wicketkeeper Mushfiqur Rahim, missed as many as six easy opportunities.

It was unbelievable the way Reza himself dropped Chamara Kapugedera at second slip after Shakib Al Hasan failed to clutch on to Sanath Jayasuriya's mistimed drive at cover in only the second over of the match. Pacer Shahadat Hossain was the bowler on both occasions.

Rahim, who had a miserable day, missed one easy stumping after he had dropped two chances early on, one each off Shahadat and left-arm pacer Syed Rasel.

But in the 39th over, Tamim pulled off one of the finest catches in the history of one-day cricket. Posted at long-on, Tamim timed his leap to perfection when comeback man Upul Chandana (1) lifted off-spinner Mahmudullah Riyad's delivery for what was a sure boundary. But Tamim's superbly-timed swivel made sure that he grabbed the ball in his right hand and after he pulled off the stunner, he had a slight glint in his eye.

Bangladesh restricted their opponents to a manageable total and had an almost second-string Sri Lankan attack to face when the home side rested strike bowler Lasith Malinga, who destroyed the visitors in the second game.

But they made another disastrous start when Javed Omar (0) comically edged a wayward Farveez Maharoof delivery to Jayawardene at second slip in the fourth ball of the innings while Rahim, promoted further in the batting order, got out for a duck as well.

Ashraful joined Tamim to repair the innings during their 42-run third-wicket stand, but the Bangladesh skipper was a little unlucky to be adjudged lbw to Nuwan Kulasekara although television replays showed ball was too high.

Bangladesh lost two more wickets to reach 5-69 when all-rounder Shakib (2) ended his terrible tour and Aftab Ahmed was brilliantly caught by wicketkeeper Kumar Sangakkara off Kulasekara, who used the condition beautifully after the two new-ball bowlers' erratic display.

Debutant Riyad and Tamim revived the hopes before left-arm spinner Sanath Jayasuriya started the carnage to become man-of-the-series by taking four wickets once again.

The 60-run sixth wicket partnership was broken when a limping Tamim came down the track to clear the mid-wicket region but was only caught by Kapugedera. Riyad played with some purpose to score a 54-ball 36.

Bangladesh are scheduled to leave Colombo tomorrow.