Bangladesh unsure 'what a good total is' after posting 253-6 as Lyon takes five wickets

Australia's Nathan Lyon took another five-wicket haul against Bangladesh. AM Ahad / AP Photo

Australia off-spinner Nathan Lyon claimed five wickets but Bangladesh fought back to reach 253-6 at stumps on the opening day of the second Test.

Lyon destroyed Bangladesh's top order with four consecutive lbws before Sabbir Rahman and Mushfiqur Rahim put on 105 for the sixth wicket to steady the hosts in Chittagong.

Monsoon rain could disrupt play on the second day, putting pressure on Steve Smith's men to polish off Bangladesh's tail early as they seek a win to equalise the two-Test series.

Australia lost their first-ever Test against Bangladesh last week and dropped a fast bowler in Chittagong to strengthen their spin attack on a turning wicket.

Lyon claimed his fifth wicket in the last session when Sabbir was stumped.

But captain Mushfiqur Rahim remains an obstacle for the tourists, unbeaten on 62 and patiently holding together the innings.

Nasir Hossain, the last recognised batsman, was the other not out player with 19 at close of play at the Zahur Ahmed Chowdhury Stadium.

Rahim and Sabbir displayed contrasting styles in their stand, with Sabbir playing adventurous shots and Rahim anchoring.

Sabbir scored his 50 off only 62 balls but slowed as Rahim became more confident, smashing his own half-century off 124 balls.

Sabbir, 25, dispatched Lyon for a six over long-on and Rahim hit two consecutive fours against Steve O'Keefe.

"The wicket isn't easy to bat on, but we did try to play till the end of the day," he said.

"I am not really sure what is a good score here. We just have to bat as long as possible."

Lyon, the first off-spinner to open the Test bowling for Australia since 1938, finally removed Sabbir in the 82nd over when he was stumped by Mathew Wade.

Lyon, who finished with figures of 5-77 off 28 overs, said Australia bowled very well to pick off six Bangladeshi batsmen on "a pretty docile wicket".

"We got a bit fatigued in the later end of the day and gave too many free hits away," he said, describing Monday as "up there with the hardest Test match cricket days I've ever had".

"This would be my 69th Test match and I don’t think I've been tested like that physically."

Lyon's wickets included Tamim Iqbal, one of the architects of Bangladesh's historic victory over Australia, who fell for just nine runs on his home ground.

He also sent back Mominul Haque, who boasts the highest batting average of the Bangladesh team.

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Left-arm spinner Ashton Agar got the other wicket for Australia, as a three-pronged spin attack took the battle to the hosts.

Agar dismissed Shakib Al Hasan, whose all-round heroics earned him man of the match in the first Test, for 24.

Rahim had won the toss and opted to bat first on what looked like a spinners' paradise. Bangladesh brought in Mominul in place of pace bowler Shafiul Islam.

Australia picked spin-bowling all-rounder Steve O'Keefe, who replaced injured fast bowler Josh Hazlewood.

Hilton Cartwright replaced out-of-sorts batsman Usman Khawaja, who scored just one run each in his two innings in the first Test.