Pakistan lost three wickets in a tricky 131-run chase on day four of the rain-hit opening Test on Wednesday, after spinners Noman Ali and Abrar Ahmed helped bowl Sri Lanka out for 279. 

The tourists reached 48-3 at stumps in Galle, needing another 83 to take the lead in the two-match series. Imam-ul-Haq, on 25, and skipper Babar Azam, on six, were at the crease.