The 21-year-old from Mumbai is not thinking if he would be included in the squad for the forthcoming 26th Sultan Azlan Shah Cup in Malaysia.
"Thinking about my debut with the senior men's team is farfetched. Right now, all I want to do is focus on my basics, improve my confidence and understand the demands of playing hockey at this level," said the youngster who made his junior India debut at the Six Nation Volvo International Tournament in 2015.
"I have followed Sreejesh's game very closely. He has raised the bar for goalkeepers in India and youngsters like me are aware that we need to come at least close to his keeping skills if not match him to earn a spot in the team.
"I get to learn a lot from him and I watch him carefully in the camp. The way he treats the juniors is also very encouraging. I have never felt odd working with a senior of his stature," expressed Karkera.
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Since his debut, Karkera was a regular member in the junior squad and represented the country at the England Tour, EurAsia Cup 2016 and also accompanied the team for the Four Nation Tournament in Valencia, Spain last year.
Though he missed out on making it for the Uttar Pradesh Hockey Junior World Cup 2016 in Lucknow where his compatriots Vikas Dahiya and Krishan Pathak were chosen ahead of him, he says he has no regrets of missing out.
"It was a 50-50 feeling. I knew these guys were better than me so I am not disappointed about not being part of the Junior World Cup winning team. But I am really excited Chief Coach Roelant Oltmans picked me for this camp. This past month has been a great learning experience for me," he said.
Oltmans was the coach for the Uttar Pradesh franchise.
"Working under him is excellent because he is very clear in what he expects out of you and despite being a very young member in the squad, he makes sure I am never under any pressure," said the Mumbai lad.