4. Sherrill Headrick
The story of Sherrill Headrick landing with the Dallas Texans is an interesting one. Headrick played college football at TCU, but wound up dropping out of college and playing in the Canadian Football League for a season. Afterwards, he began working in the oil fields of West Texas before signing with the Texans as an undrafted free agent prior to their inaugural 1960 season.
Headrick played middle linebacker for the Chiefs organization for eight seasons, including their appearance in Super Bowl I. He made the Pro Bowl four times in that span and was a 1st Team All-Pro selection in each of his first three seasons with the team. He recorded 15 interceptions in his career with Kansas City and is one of the most revered linebackers in Chiefs history.
While he is less well-known than other Chiefs linebackers in the Hall of Fame, his career merits mention alongside them. He is a member of Pro Football Reference’s 1st Team All-Decade of the 1960’s and a member of the Chiefs’ own Hall of Fame. He is not only one of the top UDFAs in team history, but is also one of the best linebackers in team history.