By Tom Gott Barcelona manager Hansi Flick has revealed his confidence that Ilkay Gundogan will remain at the club this summer. Just hours before Saturday’s 2-1 win over Valencia, Barcelona were rocked by a report which claimed Gundogan had grown tired of life at Camp Nou and had asked to leave the club before the end of the summer transfer window. The midfielder was left out of the matchday squad for the game, although that decision was made before the report emerged. Barcelona insisted Gundogan’s absence was due to a minor head injury suffered in the Joan Gamper Trophy defeat to Monaco. “As y…