Sri Lanka have called on Seekkuge Prasanna to replace Dimuth Karunaratne for the remainder of the Cricket World Cup.

Karunaratne fractured the little finger on his right hand during training and has been ruled out of the remainder of the tournament.

Prasanna's call-up is the third such change for Sri Lanka, after the earlier withdrawals of Jeevan Mendis and Dhammika Prasad from their original party.

Slow left-armer Rangana Herath is also a fitness concern after sustaining a finger injury in the win over England on Sunday.

"Dimuth is unfortunate, he fractured his finger in fielding practice on Thursday, so he's been declared unfit, he probably needs an operation," said Mahela Jayawardene.

"I'm not sure how bad or long it will take but he's definitely going back home.

"With Rangana, he's had stitches in his fingers so we need to give him five or six days for it to heal properly, then the stitches will come off then we'll see how he progresses."