Bayern Munich coach, Julian Nagelsmann is frustrated after his tactics was leaked in the media by an unknown individual, Sportivationng.com. reports.
The documents contained details of how he wants his players to play, the position they should occupy on the pitch.
“It bothers me a lot,” Nagelsmann said.
“The person who leaks something like that harms every single player.
“What is the person who is passing this on looking for? What does he expect?
“I don’t see what his motivation can be, other than to make it easier for the opponent.
“Moles are a protected species. Every time you drive through the countryside you see 80,000 moles and you can’t get rid of them. It’s very, very complicated to find them.
“I’m trying to find out what the reason is. It’s always important for me to be able to look in the mirror at night, to treat my players and my fellow coaches well.
“I hope this person can’t look in the mirror because it’s not fair.”
Nagelsmann and his players are preparing to face Bayer Leverkusen on Sunday in the Bundesliga.