|No. 51, 46|
|Position:||Linebacker / Fullback|
|Date of birth:||November 15, 1981|
|Place of birth:||Canton, Illinois|
|Height:||5 ft 11 in (1.80 m)|
|Weight:||237 lb (108 kg)|
|NFL Draft:||2005 / Round: 5 / Pick: 138|
|* Offseason and/or practice squad member only|
|Career highlights and awards|
|Career NFL statistics|
James Harvey "Boomer" Grigsby (born November 15, 1981 in Canton, Illinois) is a former American football fullback. He was drafted by the Kansas City Chiefs in the fifth round of the 2005 NFL Draft. He played college football at Illinois State.
Grigsby attended and played high school football at Canton High School where he was an all-area linebacker during his senior season. He was not recruited to play college football until an Illinois State coach saw him lifting weights in his high school's weight room.
The following season, Grigsby tied his own school record with 179 tackles. He came in second behind only future Kansas City Chiefs teammate Jared Allen in the voting for the Buck Buchanan Award, given annually to the top defensive player in Division I-AA.
In 44 games (40 starts), at Illinois State, Grigsby record a school record 580 tackles to go along with 41.5 tackles for a loss, 13 sacks, six fumble recoveries, five forced fumbles and seven passes defensed. He was Gateway Football Conference Player of the Year, a Division I-AA All-American and Buchanan award finalist each of his final three seasons.
Kansas City Chiefs
Grigsby was drafted by the Kansas City Chiefs in the fifth round (138th overall) of the 2005 NFL Draft. On July 15, he signed a three-year, $1.067 million contract with the team. It included a signing bonus of $142,000 and base salaries of $230,000 (2005), $310,000 (2006) and $385,000 (2007).
In his rookie season with the Chiefs, Grigsby chose to wear No. 51. He played in all 16 regular season games that year in a reserve role and finished third on the team with 19 special teams tackles.
Prior to the 2007 regular season, Grigsby was converted from linebacker to fullback. The transition was chronicled on the HBO reality series Hard Knocks:Training Camp with the Kansas City Chiefs.
Despite the position change and an injury to his ribs during the preseason, Grigsby made the team. He went on to appear in 13 games for the Chiefs that season including one start. His first NFL reception came on a nine-yard pass from quarterback Brodie Croyle against the Denver Broncos on December 9, and he finished the season with two receptions for 14 yards. He finished third on the team in special teams tackles (12) for the third straight season.
On March 4, 2008, Grigsby agreed to terms on a one-year contract with the Miami Dolphins. The signing reunited him with current Dolphins running backs coach James Saxon, who was Grigsby's position coach with the Chiefs in 2007.
Grigsby won the team's starting fullback job in 2008 after incumbent Reagan Mauia was released during final cuts. However, after starting the Dolphins' season opener against the New York Jets on September 7, Grigsby was released by the team two days later in favor of free agent Casey Cramer. He spent the rest of the season out of football.
Absence from football
Grigsby now works as a medical salesman. He comically claimed In The Best of Hard Knocks on HBO that because he was so bad and once cut, the Miami Dolphins' offense changed to a Wildcat and also changed how NFL teams across the nation set up their offense. Grigsby works as a color commentator for Illinois State University's television coverage for the football team.