"My simple thinking about bowling in the death, number one is that mentally you have to be very strong. There are so many times I have seen that the first ball you bowl goes for a six, the second ball also goes for a six and you feel maybe this over is going for 25-26 runs," Nehra, who plays for Sunrisers Hyderabad, told reporters here.
"But if you are mentally strong and even if the first two balls go for sixes you can still bowl a 15-run over. Those 5- 10 runs make a big difference," he explained.
"Everbody's mindset is different. Yorker is one word which I hear in T20 cricket, the more and more I play. It is very easy to say like everyone says 'Oh, bowl a yorker!' because somebody who never bowled, he doesn't know what it takes to bowl a yorker," he said.
"It is very easy to say go and bowl a yorker. If it's in my hands to bowl good yorkers I can bowl six. It is not that easy," he added.
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"It is not necessary that they will be looking for a left-arm seamer. And it is not that I am on trial. Everybody knows if I am fit what I can do. If the team management, the captain and coach want me and if I am ready and raring to go, and if I am fit then definitely I will play," he said when asked about the Champions Trophy.
"But it is not that the team is looking for a left-arm fast bowler. But if you have a left-arm fast bowler it does make a difference or if you have three left-arm fast bowlers and if you have two right-handers it makes a difference.
For Nehra, 37, recovery is as important as training.
"For me, recovery is as important as training. If I say it doesn't make a difference, at my age I will be lying. At the age of 38, not only fast bowlers but even for a batsman it becomes difficult.
"You have to put in extra yards even for recovery or training or practice and that is what I have been doing," he said.