Roshen Silva joins the part to push Sri Lanka past 700 before Bangladesh lose three late wickets
Tigers struggle after monster SL total
Sri Lanka have set up a potential final-day victory in the first Test against Bangladesh after smashing 9-713 and reducing the hosts to 3-81 in their second innings in Chittagong.
Bangladesh still trail Sri Lanka by 119 with first-innings centurion Mominul Haque 18 not out at stumps on Saturday's fourth day with an increasingly deteriorating pitch.
Sri Lanka declared their first innings two overs after tea, having reached the second-highest total against Bangladesh (they also scored the highest: 6-730 in 2010 in Dhaka).
Openers Tamim Iqbal and Imrul Kayes made an aggressive start for Bangladesh who amassed 513 in their first innings, but Kayes played a loose sweep shot against off-spinner Dilruwan Perera to throw away his wicket for 19.
Left-arm spinner Lakshan Sandakan undid Iqbal with a quicker delivery to bring an end to his fluent 41, leaving Bangladesh at 2-76.
Mushfiqur Rahim and Haque looked like seeing out the day for Bangladesh without further problems until Rahim was out for two.
After resuming on 3-504, Sri Lanka added 109 in the first session to surpass 600 and eclipse England's 6(dec)-599 against Bangladesh in 2010 for the highest innings total at the venue.
Roshen Silva, playing just his second Test, scored 109 to become the third centurion in the Sri Lankan innings after Kusal Mendis (196) and Dhananjaya de Silva (173).
Silva was dismissed trying to cut off-spinner Mehidy Hasan (3-174) in the 156th over to end a 135-run partnership with captain Dinesh Chandimal.
Left-arm spinner Taijul Islam claimed Chandimal for 87 with a straight delivery in the first over after lunch.
Hasan had Niroshan Dickwella caught behind after a fluent 61-ball 62, with nine boundaries, before Perera (32) was undone by left-arm spinner Sunzamul Islam (1-153) for his maiden Test wicket.
Islam dismissed Suranga Lakmal (9) and Rangana Herath (24) in his consecutive overs after tea. He took four wickets in the innings but conceded a record 219 runs for a Bangladesh bowler in 67.3 overs.