The ninth edition of South Asia's premier competition is scheduled to get underway in the Indian capital of New Delhi on Friday, with Bangladesh taking on Pakistan and then Nepal's meeting with the Maldives in Group B at the Jawaharlal Nehru Stadium.
Eager to avoid a repeat of the 2009 1-1 draw with the same opponents in Bangladesh, Roberts believes his squad is ready for the challenge against a talented Maldives outfit.
"The first match is the most vital for the team. Victory in the match could make it easy for us to get into the final and also boost the confidence of the team," Roberts said.
"All the players are in a good shape and fit. We are confident of beating the Maldives. We will close down the opponents.
"We will not let them hold and play in aggressive style. I know how they play. Maldives have good midfielders, (but) I have got a strategy to play against them."
The action in Group A will start on Saturday when Sri Lanka play Bhutan, before hosts and reigning champions India face Afghanistan.