Sri Lanka, who have been plagued by injuries with all-rounder Jeevan Mendis, batsmen Dimuth Karunaratne and Dinesh Chandimal already bowing out of the 50-over showpiece event, are eyeing a third-placed finish ahead of Bangladesh in their group.
The Angelo Mathews-led side, which has won three of its five matches, are yet to iron out the batting worries with constant injuries making it difficult to sort the final XI for the knockout stage.
With a week to go before the final-eight encounters kick off, Sri Lanka may look to rest tired limbs and test their bench strength against the Preston Mommsen-led side, which is lying at the bottom of the heap with five losses from as many matches.
Sri Lanka have played the non-Test side just once in ODI, winning by 183 runs in July 2011 and are looking at a similar mauling once again.
Also Read
"The idea is to play our best cricket," said Atapattu.
"That is how we want to play every match and it will be no different against Scotland. When you get on the pitch, you start a new game from scratch," he added.
Even left-arm spinner Rangana Herath and opener Lahiru Thirimanne are nursing finger injuries and Atatpattu said that the opener will not take the field against Scotland as he is required to recover before the quarter-final against an undecided opponent in Sydney on March 18.
"But hopefully the others who are there will deliver. Every fit player is in the mix to play but we have not taken a call on whom to leave out," he added.