Pakistan won the toss and decided to bat in the second Twenty20 international against South Africa at the Wanderers Stadium in Johannesburg on Monday. There was confusion when match referee Andy Pycroft announced that South Africa had won the toss and had decided to bat, only to apologise when he picked up the coin and realised that Pakistan captain Babar Azam had called correctly. Pakistan made two changes from the side that won the first match by four wickets with one ball to spare at the same venue on Saturday. Batsman Fakhar Zaman was ruled out with an eye allergy and replaced by Sharjeel Khan, while Mohammad Hasnain came in for Haris Rauf in a switch of fast bowlers. South Africa were unchanged. Captain Heinrich Klaasen said he was not too concerned about batting second despite preferring to go in first. "It gives us more clarity about what we have to score," he said. Babar said his objective was simple: to post a big total. Teams: South Africa: Heinrich Klaasen (captain, wkt), Aiden Markram, Janneman Malan, Pite van Biljon, Wihan Lubbe, George Linde, Andile Phehlukwayo, Sisanda Magala, Beuran Hendricks, Lizaad Williams, Tabraiz Shamsi Pakistan: Babar Azam (captain), Mohammad Rizwan (wkt), Sharjeel Khan, Mohammad Hafeez, Haider Ali, Mohammad Nawaz, Faheem Ashraf, Hasan Ali, Shaheen Shah Afridi, Usman Qadir, Mohammad Hasnain Umpires: Adrian Holdstock, Bongani Jele (both RSA) Television umpire: Shaun George (RSA) Match referee: Andy Pycroft (ZIM) str/pb/jc