BRIDGETOWN (Barbados) (AFP) - West Indies captain Chris Gayle admits the hosts will have to go back to the drawing-board ahead of their World Twenty20 Super Eights clash with India here on Sunday. Both teams started the second round on Friday with heavy defeats at the Kensington Oval, the hosts going down by 57 runs to Sri Lanka after India suffered a 49-run reverse at Australias hands. India lost six wickets to Aussie fast bowlers Dirk Nannes and Shaun Tait on a lively pitch and seemed to struggle with short-pitched deliveries - a point not lost on Gayle whose attack features several quicks. We can use the short ball but at the same we have to be careful because it (the Kensington Oval) is a small ground and they have quality batters who can make adjustments. But its certainly something we will put into our plans. West Indies played a major part in their own downfall against Sri Lanka by missing six chances, with Gayle himself dropping Kumar Sangakkara at slip before his opposite number had scored. Sangakkara went on to make 68 and share in a 166-run stand with former skipper Mahela Jayawardene, who was given two reprieves before finishing with an unbeaten 98. Well discuss what happened and its back to the drawing board, Gayle said. Its a must-win for both teams and it should be a good game. We are still confident we can win the two games and move onto the semi-final, the opening batsman insisted. He added: Its a disappointing start but we had our chances and we let it slip away. We cant take away the fact they batted really well but those missed chances hurt us.