Sri Lanka, sent in to bat, were 153 for four in their first innings at tea on the opening day of the third and final Test against Pakistan in Pallekele on Friday.
Dimuth Karunaratne was unbeaten on 70 and Jehan Mubarak was on nine after Yasir Shah grabbed three wickets when Sri Lanka resumed after lunch on 85 for one.
The series is tied at 1-1 after Pakistan won the first Test in Galle by 10 wickets and Sri Lanka took the second in Colombo by seven wickets.
Sri Lanka make bright start in decider against Pakistan
Dimuth Karunaratne and Upul Tharanga provided Sri Lanka an aggressive start on the opening day of the decisive third and final Test against Pakistan in Pallekele on Friday.
The left-handed pair put on 70 for the second wicket as Sri Lanka, sent in to bat by Pakistan captain Misbah-ul Haq, recovered from an early setback to end the morning session at 85 for one in 26 overs.
Karunaratne was unbeaten on 34 and Tharanga, who replaced Kumar Sangakkara for the match, was on 39 at the break. Both batsmen hit five boundaries each.
Pakistan won the first Test in Galle by 10 wickets and Sri Lanka responded with a seven-wicket victory in the second match in Colombo.
Pakistan secured an early break with the wicket of Kaushal Silva, who had scored 125 in the first Test and 80 in the second.
Silva made nine when he was caught behind off left-arm seamer Rahat Ali, who was picked alongside Ehsan Ali and Imran Khan in a new-look pace attack by the tourists.
As the early moisture on the pitch dried out under a hot sun, conditions became favourable for batsmen on the evenly paced wicket.
Rahat proved the most expensive of the four bowlers used by Pakistan, conceding 41 runs in his nine overs.
Both sides reshuffled their packs with four changes each in a bid to break the 1-1 series deadlock.
Besides the three seamers who came in, Pakistan also brought in left-hand batsman Shan Masood.
Two of those changes were forced as pace spearhead Wahab Riaz was sidelined with a fractured hand, and Mohammad Hafeez was not available since he has to be tested after being reported for a suspect action in the first Test.
Left-arm seamer Junaid Khan and spinner Zulfiqar Babar were dropped.
With Sangakkara opting out of the decider and batsman Kithuruwan Vithanage showing poor form, Sri Lanka recalled two left-handers in Tharanga and 34-year-old Jehan Mubarak.
Mubarak played the last of his 10 Tests in December, 2007 — before any of his current teammates had made their debut.
The hosts also left out veteran left-arm spinner Rangana Herath and injured fast bowler Dushmantha Chameera to play seamers Suranga Lakmal and Nuwan Pradeep. Dhammika Prasad leads the three-man pace attack.