Noman Ali to clinch the series by 2-0 on Day 4 of the second Test at the Sinhalese Sports Club on Thursday.
Pakistan dominates Sri Lanka for entire day to take full control of 2nd Test.
Pakistan end year-long Test-win drought with 4-wicket victory over Sri Lanka at Galle
Pakistan are favourites chasing 131 for victory, but they were three down at stumps on the fourth day.
Saud Shakeel made an unbeaten double century to put Pakistan in the driving seat in the Galle Test at stumps on day three.
Saud Shakeel and Agha Salman hit attacking fifties to snatch the momentum back for Pakistan.
Dhananjaya de Silva leads recovery after Shaheen opening spell dents Sri Lanka.
The itinerary for Pakistan tour of Sri Lanka is now out, with the two matches set to be played between July 16 to 28.
Shaheen returns as Pakistan Test squad for Sri Lanka tour; Hurraira, Jamal handed maiden call-ups.