Pakistan, who whitewashed Sri Lanka in the one-day series, will be playing the match to win the three-match series. They lead the T20 series 1-0.
The green shirts won the first match by seven wickets.
The match will start at 09.00 pm Pakistan Standard Time (PST).
Pakistan (squad): Sarfraz Ahmed (c), Aamer Yamin, Ahmed Shehzad, Babar Azam, Faheem Ashraf, Fakhar Zaman, Hasan Ali, Imad Wasim, Mohammad Amir, Mohammad Hafeez, Mohammad Nawaz(3), Rumman Raees, Shadab Khan, Shoaib Malik, Umar Amin and Usman Khan.
Sri Lanka: NLTC Perera (c), M Bhanuka, PC de Silva, MVT Fernando, PLS Gamage, MD Gunathilaka, EMDY Munaweera, SS Pathirana, S Prasanna, SMA Priyanjan, S Samarawickrama, JRMVB Sanjaya, MD Shanaka, I Udana, ML Udawatte and JDF Vandersay.