Education
Grigsby attended Judson High School in Converse, Texas and was a student and a letterman in football and basketball. Grigsby graduated from Judson High School in the top 10 percent of his class.
Grigsby attended Judson High School in Converse, Texas and was a student and a letterman in football and basketball. Grigsby graduated from Judson High School in the top 10 percent of his class.
He was signed by the Miami Dolphins as an undrafted free agent in 2003. He played college football at Kentucky. In football, as a senior, he started as a linebacker and was a first team All-State selection.
Grigsby in 45 games and started 18 at Kentucky and notched 10.0 sacks during collegiate career.
In 2007 he played in eight regular season games—four with Carolina and the final four games of the season with Minnesota. He made his presence felt immediately with the Vikings, notching a 4th-quarter sack of former Vikings QB Shaun Hill at San Francisco (12/9), his 1st career sack, and forced a fumble on the play that was recovered by fellow lineman Spencer Johnson he played in 1st NFL game of his career in the opener at Saint Louis (9/9) as a Panther.
In 2006 he spent final two weeks of regular season on Panthers practice squad. He went to training camp with Carolina but was waived on 8/29/06.
In 2005, he went to training camp with Atlanta but was waived on 8/26/05.
In 2004, he spent training camp with Miami but was released in final roster cuts on 9/5/04. In 2003, he entered NFL as a rookie free agent with the Dolphins. He was inactive for all 16 games with Miami on a team that went 10–6 but did not make the playoffs under head coach Dave Wannstedt.
Grigsby has also been a member of the Atlanta Falcons and Carolina Panthers.