How many letters does the top answer for “tennis player from german empire” have?

The most common answer is traun (5 letters).

Crossword clue: tennis player from german empire

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

traun 5 letters wd-fact-v3

athletics player from german empire 60% similar → traun

boxing player from german empire 60% similar → schmeling