Zimbabwe captain Graeme Cremer won the toss and chose to field against Sri Lanka in the fifth and deciding one-day international in Hambantota on Monday.
The visitors, who won the previous ODI to level the series at 2-2 on Saturday, announced an unchanged side.
The Angelo Mathews-led Sri Lanka included veteran paceman Nuwan Kulasekara and rookie off-spinner Akila Dananjaya in place of Asitha Fernando and Lakshan Sandakan.
Sri Lanka: Angelo Mathews (captain), Upul Tharanga, Niroshan Dickwella, Danushka Gunathilaka, Kusal Mendis, Asela Gunaratne, Wanindu Hasaranga, Akila Dananjaya, Nuwan Kulasekara, Lasith Malinga, Dushmantha Chameera.
Zimbabwe: Graeme Cremer (captain), Solomon Mire, Hamilton Masakadza, Craig Ervine, Sean Williams, Chris Mpofu, Peter Moor, Sikandar Raza, Tendai Chatara, Tarisai Musakanda, Malcolm Waller.
Umpires: Ian Gould (ENG), Raveendra Wimalasiri (SRI)
TV Umpire: Nigel Llong (ENG)
Match Referee: Chris Broad (ENG)