Gayle hit 75 as West Indies thrashed Australia in Friday's semi-final and he has now boldly stated that his side will beat the tournament hosts in Sunday's final.
Gayle said: "This World Cup is going to be ours.
"Sorry Sri Lanka, but it is West Indies all the way. I think it will be a good final, but West Indies will be on top."
Sri Lanka aim to go one better than three years ago, when they lost to England in the final.