Chittagong: Pakistan put in an impressive bowling performance to send Bangladesh reeling at 52-5 in their first innings at lunch on the opening day of the first Test in Chittagong on Friday.

Fast bowler Aizaz Cheema jolted the hosts with two early wickets while paceman Umar Gul, and spinners Saeed Ajmal and Abdur Rehman each took one wicket after the tourists had elected to field.

Debutant Mohammed Nazimuddin was unbeaten on 27 at the break with Mohammad Mahmudullah (one not out).

Pakistan captain Misbah-ul-Haq opened the attack with off-spinner Mohammad Hafeez after winning the toss, but had to rely on his fast bowlers to rattle the hosts.

Hafeez conceded nine runs, including a six over long-off by opener Tamim Iqbal, in his opening three overs before being replaced by Cheema who struck with his fourth delivery.

Cheema had Tamim (nine) caught behind and then had Shahriar Nafees caught by Younis Khan at second slip for no score in his next over to reduce the hosts to 19-2 in the opening nine overs.

Bangladesh continued to struggle against pace as they soon lost Mohammad Ashraful, caught behind off Gul after making just one run.

Skipper Mushfiqur Rahim (four) also did not last long, trapped leg-before in Ajmal's first over to leave his team struggling at 28-4.

Former captain Shakib Al Hasan (eight) was caught at square-leg by Hafeez while sweeping left-arm spinner Rehman a few overs before lunch.

Pattinson, who was not in selection reckoning until injuries to Mitchell Johnson, Ryan Harris and Shane Watson exposed a shortage of experienced international bowlers for this series, is already earning a reputation as a destroyer in only his second test match.

He took three wickets off four balls in the first over on Sunday to hasten New Zealand's second-innings collapse at the Gabba, just missing a hat-trick as he claimed 5-27 in the innings and six wickets for the test.

Peter Siddle, who is leading the Australian pace attack, made the early breakthroughs and finished with 3-52. Tall left-armer Mitchell Starc, another bowler in his second test, took the other two wickets.

Martin Guptill was out in the second over of the match when he drove forward at a good-length delivery from Siddle and edged to wicketkeeper Brad Haddin. Jesse Ryder was out lbw on the last ball of the next over.

Ross Taylor (6) was out in similar fashion this time the TV umpire confirmed the onfield lbw decision and sent the New Zealand captain back to the pavilion.

Kane Williamson (19), opener Brendon McCullum (16) and Reece Young (0), went in quick succession as New Zealand lost three wickets for four runs before lunch.

Resuming in the middle session at 83-6, Doug Bracewell was out for 12. Tim Southee was out for 18 chasing a wide delivery from Starc that he hit off his stumps and Pattinson took the last two wickets.

Vettori, a 108-test veteran, woke up this morning with a left hamstring twinge and exacerbated the injury in the warm-up. He was replaced by left-arm seamer Trent Boult, who faced five balls without scoring and was unbeaten at the end of the New Zealand innings in his test debut.

The absence of the 32-year-old Vettori was a major blow for the Black Caps, who missed his resilient batting in the lower middle order and are certain to miss his left-arm orthodox spin.