Toni Kroos struggled to find minutes at Bayern Munich while Jurgen Klinsmann was manager. Johannes Simon/Bongarts/Getty Images

Real Madrid midfielder Toni Kroos has criticised Jurgen Klinsmann for failing to teach him anything during his time in charge of Bayern Munich.

Kroos came through the ranks of Bayern's youth academy, joining the club from Hansa Rostock in 2006. He soon made a name for himself and debuted as a 17-year-old in September 2007.

Yet when Klinsmann was hired to replace Ottmar Hitzfeld after that season, Kroos had difficulties earning minutes under the new boss and joined Bayer Leverkusen on loan in 2009. He flourished there once Jupp Heynckes joined the club in the summer.

Looking back on a number of his coaches during his career in an interview with Die Zeit, Kroos did not have any kind words for the current United States manager.

"During his time at Bayern I personally missed everything: An idea of how to play football, adequate communication -- and success," the midfielder said.