Cal Hubbard

Games played	105
Games started	77
	Stats at Pro Football Reference

Cal Hubbard
No. 41, 39, 40, 38, 27, 51, 35, 60
Position	Tackle
Personal information
Born	October 31, 1900; Keytesville, Missouri, U.S.
Died	October 17, 1977 (aged 76); St. Petersburg, Florida, U.S.
Listed height	6 ft 2 in (1.88 m)
Listed weight	253 lb (115 kg)
Career information
High school	Glasgow (Glasgow, Missouri)
College	Centenary (1922–1924); Geneva (1925–1926)
Career history
Playing
	New York Giants (1927–1928); Green Bay Packers (1929–1933, 1935); New York Giants (1936); Pittsburgh Pirates (1936);
Coaching
	Texas A&M (1934); Line coach; Geneva (1942); Head coach;
Awards and highlights
	4× NFL champion (1927, 1929–1931); 4× First-team All-Pro (1927, 1931–1933); NFL 1920s All-Decade Team; NFL 50th Anniversary All-Time Team; NFL 75th Anniversary All-Time Team; NFL 100th Anniversary All-Time Team; Green Bay Packers Hall of Fame; 66th greatest New York Giant of all-time; Grantland Rice's All-Time All-America; Centenary College Athletic Hall of Fame; Louisiana Sports Hall of Fame; Missouri Sports Hall of Fame; Baseball Hall of Fame; Helms Foundation Hall of Fame;
Career NFL statistics
Games played
Games played	105
Games started	77
	Stats at Pro Football Reference
	Pro Football Hall of Fame
	College Football Hall of Fame

Robert Calvin Hubbard (October 31, 1900 – October 17, 1977) was an American professional football player and Major League Baseball (MLB) umpire. After playing college football at Centenary College and Geneva College, Hubbard played in the National Football League (NFL) between 1927 and 1936 for the New York Giants, Green Bay Packers and Pittsburgh Pirates, playing the bulk of his career with the Packers. Hubbard is credited as being one of the inventors of the football position of linebacker.

He was also an umpire in the American League (AL) from 1936 to 1951, then worked as an umpire supervisor until 1969. George Halas affectionately called Hubbard the "Big Umpire."

To date, Hubbard is the only person to be enshrined in both the Pro Football Hall of Fame and Baseball Hall of Fame. He is also a member of the College Football Hall of Fame.