Warren Keller, who coached Argyle to two Minnesota 9-man high school football championships in the 1980s, died Tuesday morning at a hospital in Roseau, MN, after a long battle with cancer.
Keller was 70.
Keller led Argyle to a Minnesota state 9-man football title in 1986, and was an assistant coach on Argyle's 1981 state championship team, under head coach Connie Lubarski. Keller also coached basketball at Argyle, and later coached football and basketball at Warroad.