Comparison of American football and rugby union possession of the ball at their own 20-yard (25 yard line in College Football) line. An important difference between the two sports involves the aftermath of a score. In American football, the scoring team kicks off, except after a safety. In rugby union, the team conceding the score kicks off (in rugby sevens, a variant of rugby union featuring seven players per side, the scoring team kicks off). An American football team consists of an offensive unit, a defensive unit and a "special teams" unit (involved in kicking and kick returns). Only eleven players can be on the field at
John Field (American football) John Field (American football) John Field (September 26, 1886 – May 3, 1979) was an American football player and coach. Field played college football for Yale University from 1908 to 1910 and was captain of Yale's football team. He also served as the head coach of the 1911 Yale football team. He later worked for more than 60 years as manufacturer of corsets and lingerie. Field was born in Viroqua, Wisconsin, in 1886. His father, Walter S. Field (born October 1856), was a Wisconsin native and an attorney. His mother, Emma (Tourjee) Field (born October 1858), was also a Wisconsin