During his years at Lodge Grass High School, Harris played football, basketball, baseball, and ran track.
In 2001, Tuff set an all-class Montana high school state record in the 100-meter dash.
He was waived during final cuts on September 1 and re-signed to the team's practice squad, where he remained until being promoted to the active roster on November 14.
Harris was signed from the practice squad to the active roster on November 22 after cornerbacks Reynaldo Hill and Eric King were placed on injured reserve.
The two met while Mary was playing golf at the University of Montana and Tuff was on the football team.
Tuff is an enrolled member of the Apsaalooke Nation (Crow Tribe) and is also of Northern Cheyenne descent.