Both Sri Lanka and New Zealand face a must win game, to keep alive their aspirations of holding the Twenty20 world cup for the first time. Sri Lanka's middle order problems were quite visible in their last game against Ireland. Will they tinker with their line in this crucial game? or will they stick with their winning combination. This will be the first time that New Zealand will experience Mendis. A lot will depend on how they handle the 3Ms, Murali, Malinga and Mendis.