Sri Lanka, who are placed seventh on the points table with six points from seven matches, need to win their final two games, and hope for favourable outcomes in the England and Pakistan's next fixtures
The Jason Holder-led side, on the other hand, will look to finish on a high after being knocked out of the tournament.
TOSS UPDATE: West Indies won the toss and opted to bowl first against Sri Lanka. Roach is unwell, and Gabriel will replace him in the playing XI.
Holder, West Indies captain: We're fielding fuirset. A fresh wicket. It should be responsive first up with the ball. We still got pride to play for, and we need to play a perfect game. Bowlers have done well so far, and hopfully they can respond and the batsmen can chase it down.
Sri Lanka skipper Karunaratne said he wants the middle- and the top-order to fire in this match.
Karunaratne, Sri Lanka captain: We would have liked to bowl. In the last match, the pitch did respond with the new ball. We wanted to take early advantage with the new ball and take a couple of wickets early in the morning. We couldn't pass 250 and haven't really fird properly. Three changes for now (can't quite remember them all).
Teams:
Sri Lanka (Playing XI): Dimuth Karunaratne(c), Kusal Perera(w), Avishka Fernando, Kusal Mendis, Angelo Mathews, Lahiru Thirimanne, Dhananjaya de Silva, Isuru Udana, Jeffrey Vandersay, Kasun Rajitha, Lasith Malinga
West Indies (Playing XI): Chris Gayle, Sunil Ambris, Shai Hope(w), Nicholas Pooran, Shimron Hetmyer, Jason Holder(c), Carlos Brathwaite, Fabian Allen, Shannon Gabriel, Sheldon Cottrell, Oshane Thomas