|Date of birth||31 March 1889|
|Place of birth||Altona/Elbe|
|Date of death||21 November 1944(aged 55)|
|1907–27||FC Altona 93|
|* Senior club appearances and goals counted for the domestic league only|
Jäger began his career with SC Union 03 Altona and played with Altona 93 from 1907 until 1927, where he would have scored over 2,000 goals in over 700 amateur matches. However, like many others there is no proof or evidence of this claim. He was a member of the German Olympic squad and played one match in the main tournament, scoring the only goal for Germany in the main tournament. He died during World War II, while working for bomb sweep in Hamburg, and is buried in Altona Main Cemetery.
- "Olympians Who Were Killed or Missing in Action or Died as a Result of War". Sports Reference. Retrieved 24 July 2018.
- Adolf Jäger at National-Football-Teams.com
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