West Indies, who slumped to defeat in the opening match, will be looking to wrap up the one-day series against Zimbabwe when they take on the hosts here on Friday.
The Windies have a 2-1 lead in the five-game series after recovering from their opening loss in Harare.
"This is the most important game of the series. If we win that would mean we clinch the series," said stand-in skipper Dwayne Bravo.
"That was our goal from the time we arrived, to win the series. We were looking to win 5-0 but Zimbabwe beat us in the first match, which was high-scoring.
"Since the first match we went back to the drawing board and have been playing the way we know we can. We won convincingly in the second and third matches and we will be looking to do the same in the fourth match. Win and win big and close out the series."
The fifth and final match is also at Queen's Sports Club here on Sunday.