Sri Lanka have lost in the first two matches which means there is a high chance of Sri Lanka losing in the third match as well. That is, whether Sri Lanka can save themselves from being whitewashed, it will be understood in the third match. Sri Lanka lost the first match by a narrow margin but Sri Lanka lost the second match by a huge margin of 45 runs. If Sri Lanka plays the third match with the same squad then there will definitely be more chances of defeat in the third match as well.
Sri Lanka lost very badly in two consecutive matches but in my opinion i will blame everything on sri lanka bowling and batting as there were many weak points from their bowling and batting. In both the matches, new zealand bowling and batting sides were good and they tried to win the match with a storming pace and succeeded. According to me in t20 one should always score more runs so that it becomes difficult for the opposite side to pick up that donation. Also sri lanka player nissanka batted well in the first t20 match but everyone else played really bad. In fact the sri lankan team has seen more deterioration since some of the older players retired.