By Tom Gott Germany manager Julian Nagelsmann has blamed Barcelona’s heavy use of Ilkay Gundogan for the midfielder’s underwhelming showing during the recent international break. Despite clear success for the team – Germany beat France 2-0 before seeing off the Netherlands 2-1 – Gundogan has faced criticism for two mixed showings, with his performance in the first game against the reigning world champions of particular concern. Asked to explain Gundogan’s performances, Nagelsmann suggested the 33-year-old is struggling with fatigue from barely being rested by Barcelona. “Ilkay was very self-cr…