Grimm played college football at Virginia Tech and was selected by the Tampa Bay Buccaneers in the seventh round of the 2010 NFL draft.
[2] His older brother, Chad, played college football at Virginia Tech, was the outside linebackers coach for the Washington Redskins from 2017 to 2019.
Grimm's younger brother, Dylan, played lacrosse at Loyola University Maryland, where he won a National Championship in 2012.
[4] His uncle, Donn Grimm, was a starting linebacker on the Notre Dame 1988 National Championship team and signed with the Cardinals as a rookie free agent in 1991.
[6] After the season, Grimm earned first-team all-state and Northern Region Defensive Player of the Year honors.
He lettered three times and led team to three state championships[5] and was an all-American midfielder and face-off specialist recruited by Georgetown, Loyola and Virginia.
After graduating from Oakton, Grimm had one football scholarship offer, which was from Division I-AA William & Mary College.
[5] Head coach Frank Beamer awarded Grimm a scholarship in his redshirt sophomore season.
In the 2008 ACC Championship Game win against Boston College, he led the team with eight tackles, including 2.5 for loss.
[8] On November 9, 2009, Grimm had a game-high 12 total tackles, a forced and recovered fumble, and a late-game sack in Virginia Tech's 16-3 win against East Carolina.
[3] He is the second former Tech walk-on to earn All-America honors, joining John Engelberger, a 1999 AP second-team selection.
On September 28, 2011, the Bucs officially placed Grimm on injured reserve for the second straight year, ending his season with another setback.
In 2019, Grimm was hired by the Tampa Bay Buccaneers as a defensive and special teams assistant under head coach Bruce Arians.