In 1923 , he joined DFC Prag before moving to the United States in 1926 to sign with the Brooklyn Wanderers of the American Soccer League .
Mahrer began his career with Teplitzer FK .
In 1923 , Mahrer joined DFC Prag before moving to the United States in 1926 to sign with the Brooklyn Wanderers of the American Soccer League .
Mahrer began his career with Teplitzer FK .