"The wickets in South Africa will put the focus back on the fast bowling unit and rightly so. There will be a lot of expectation from us and I believe this attack has the ability to get 20 South African wickets. All of us had a good 14 months at home and it's time to translate into overseas success," Yadav told PTI during an interview.
"I believe good fitness, proper plans were key to our success in the sub-continent. But the main thing is the attitude with which you enter the field. If we can maintain it in South Africa, no one can stop us," said the man, who is one shy of completing 100 Test wickets.
Sanjay Manjrekar, in a column, urged Yadav to bowl a line where batsmen don't leave most of his deliveries and also owing to the suspect slip catching of the Indian team.
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"Like Kapil Dev, my natural delivery is outswinger. If I try to bowl too many incoming deliveries, it can lead to me losing my outswinger, which I don't want. Obviously, there will be a few change-ups with incoming deliveries but outswinger remains my core strength," Yadav said.
Indian pacers got carried away with their line on earlier occasions when they got pacer-friendly wickets, but it won't happen this time around, Yadav assured.
"During earlier tours, we were younger and expectedly more excited. But now, all of us -- Ishant, Shami, Bhuvi and myself know how to curb our over enthusiasm. We will be assessing the conditions," said Umesh.
Yadav made it clear that the national selectors never bracketed him as a "Test specialist" just because he has played only nine ODIs in the year 2017.
Jasprit Bumrah and Bhuvneshwar Kumar have been the first-choice white ball bowlers for some time now but the 30- yer-old Vidarbha speedster does not want to read too much into the pattern of selection.
"I can tell you that the national selectors have been quite aware of the workload on myself and Mohammed Shami. They have been very supportive and at no point have they told us that we are not in their scheme of things as far as limited overs are concerned," Yadav clarified.
He reminded about the importance of taking care of niggles after Test matches.
"I also need to take care of my body and ensure that I remain as much injury free as possible. You don't want to play with niggles and end up with major injury," said Umesh who has 40 wickets in the 17 Tests that he has played in last 14 months.
"You are not insecured when you are aware about your capacity to play. I know how much cricket I can play at length and when my body requires rest. If you know how to manage workload, you are never insecured.
When you take a break, it's only increases the longevity of one's career and you can avoid career-threatening injuries," he concluded.
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