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6th December 2018
03:32pm GMT

"I never did one hundred percent of the exercises in the preparation periods, not once," he explains.
"You get a heart rate monitor on which all runs are saved.
"As my wife is very athletic, she did some racing with the wristband according to my specs."
"She did it so well that nobody noticed," he adds, before stressing that his wife helping him with his pre-season fitness data never had an impact on his performance on the field.
Kiessling, who played six times for Germany during his playing career, started his career with FC Nürnberg before moving to Leverkusen in 2006. He scored 131 goals for the club in 342 games, establishing himself as a firm favourite with their supporters.Explore more on these topics: