[1] He attended Sunset High School in Dallas, Texas, where he played basketball as part of the 1944 state championship team.
[3][4] Like his brother, Dan Foldberg also attended the United States Military Academy in West Point, New York.
He played football there as an end, and during the 1948 season, Foldberg was described as a consistently impressive player on what was a dominating Army team.
[8] Foldberg finished eighth in the vote for the Heisman Trophy, which is awarded annually to college football's most outstanding player.
[11] The United States Intercollegiate Lacrosse Association (USILA), the college sport's governing body, named him a second-team All-American as senior in 1951.
[13] Foldberg was selected in the 22nd round of the 1951 NFL draft by the Detroit Lions as the 261st overall pick,[14] but remained in the Army as a career officer.