In summer 1936 he was considered guilty by the court in Belgrade of the drowning of one boy in the Sava river resort. The episode affected Glaser and ended up being decisive in his to move to another giant of Yugoslav football, Zagreb's HŠK Građanski. He acquired an almost a legendary status there. He restored his place as the national team main goalkeeper, and with Građanski he will win another Yugoslav championship in 1940 as well as the Croatian championship in 1943. He played a total of 623 games for Građanski.