Sri Lanka captain Mahela Jayawardene elected to bat after winning the toss against Pakistan in the Asia Cup one-day tournament in Dhaka on Thursday.
Pakistan defeated Bangladesh by 21 runs and India beat Sri Lanka by 50 runs in their opening matches.
Each side will play the other once in the round-robin league, with the top two advancing to the final on March 22.
Sri Lanka: Mahela Jayawardene (capt), Tillakaratne Dilshan, Kumar Sangakkara, Dinesh Chandimal, Upul Tharanga, Lahiru Thirimanne, Farveez Maharoof, Nuwan Kulasekara, Lasith Malinga, Suranga Lakmal, Seekkuge Prasanna.
Pakistan: Misbah-ul-Haq (capt), Mohammad Hafeez, Nasir Jamshed, Younis Khan, Umar Akmal, Shahid Afridi, Sarfraz Ahmed, Hammad Azam, Saeed Ajmal, Umar Gul, Aizaz Cheema.
Umpires: Steve Davis (AUS) and Paul Reiffel (AUS)
TV umpire: Sharfuddoula Shahid (BAN)
Sri Lanka decides to bat against Pakistan
