Afghanistan won the toss and decided to bat.
Afghanistan faces Ireland at the Sharjah Cricket Association Stadium on Sunday.
The hosts won the first encounter, but crumbled in the second match as Ireland levelled the series.
Two Afghan players have been out so far.
AFGHANISTAN: Noor Ali Zadran, Javed Ahmadi, Asghar Stanikzai (capt), Shafiqullah Shafiq (wk), Mohammad Nabi, Nasir Jamal, Rashid Khan, Gulbadin Naib, Rahmat Shah, Shapoor Zadran.
IRELAND: William Porterfield (capt), Paul Stirling, Andrew Balbirnie, Niall O’Brien (wk), Gary Wilson, Kevin O’Brien, Stuart Poynter, George Dockrell, Barry McCarthy, Tim Murtagh, Boyd Rankin.