The 27-year-old represented Germany at the Rio 2016 Paralympics, with his team crashing out at the quarter-final stage. 

They lost to the United States, who eventually finished with the silver medal. 

In an interview with the International Paralympic Committee, Feistle suggested that Germany were the underdogs in the Brazilian city.

"Of course, it does make a difference if you are one of the underdogs at the Paralympics," he said.

"We were the last team to qualify for Rio 2016. 

"Nobody had much expectation and we were able to compete and play freely because we had nothing to lose.

"Defeats like the one against the USA are the ones we learn from. 

"This won't happen to us anymore after the many lessons we've learned."

Feistle claimed that the German team had improved since 2016, having won the 2019 Goalball European Championships in front of a home crowd. 

He is now hopeful of a gold medal at Tokyo 2020.

"Now there is some expectation for us, we have built it up through our successes and hard work," Feistle said.

"This motivates me more than it puts me under extra pressure. 

"The Paralympic Games are what an athlete lives and works for every day. 

"Winning a Paralympic medal is something very special, no matter what colour. 

"To get the gold would be to achieve a dream that has been in my head every day for four years. 

"It would be a reward for the decision I made that my life should be focused on goalball."

Germany have not earned a Paralympic medal in men's goalball since Arnhem 1980. 

They triumphed as West Germany, having also taken silver in Toronto in 1976.