Pallekele - Sri Lanka skipper Dimuth Karunaratne won the toss and elected to bat in the third one-day international against the West Indies on Sunday in their bid to sweep the series.
The hosts, who took a 2-0 lead in the three-match series on Wednesday, have retained their winning XI in Pallekele.
"It's a good wicket, we are playing two spinners and we want to give them a chance in the second innings," Karunaratne said at the toss.
"Our batters and bowlers, both are performing well and it's been a good series for us so far."
West Indies have made one change as they eye a consolation win. Leg-spinner Hayden Walsh comes in place of paceman Keemo Paul.
Captain Kieron Pollard said results aside every game was a new opportunity.
"We would have batted too. Now we are bowling first so we want to restrict them to a chaseable total," Pollard said.
"At the end of the day, people tend to go on results only. At the end of the day, you're a professional cricketer, and you want to put on a good show."
Sri Lanka: Dimuth Karunaratne(captain), Avishka Fernando, Kusal Perera, Kusal Mendis, Thisara Perera, Angelo Mathews, Dhananjaya de Silva, Wanindu Hasaranga, Isuru Udana, Lakshan Sandakan, Nuwan Pradeep
West Indies: Kieron Pollard (captain), Shai Hope, Sunil Ambris, Darren Bravo, Roston Chase, Nicholas Pooran, Jason Holder, Fabian Allen, Alzarri Joseph, Sheldon Cottrell, Hayden Walsh
Umpires: Raveendra Wimalasiri (SRI), Paul Wilson (AUS)
TV umpire: Marais Erasmus (RSA)
Match referee: Javagal Srinath (IND)