![Martti Marttelin Martti Marttelin](https://upload.wikimedia.org/wikipedia/commons/9/9d/Martti_Marttelin_1928b.jpeg)
Martti Bertil Marttelin (18 June 1897 – 1 March 1940) was a long-distance runner from Finland, who won the bronze medal in the men's marathon at the 1928 Summer Olympics. He was killed in action during World War II.
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