Gregg attended Edmond North High School in Edmond, Oklahoma and was a standout in football and wrestling. In wrestling, he was a three-time state champion, 1993-1994-1995 in the Heavyweight division. He was named wrestler of the year by the Daily Oklahoman in 1995. In football, he was a two-time All-State selection and was named the City's Defensive Player of the Year by the Daily Oklahoman as a senior in 1994.
College career
Named All-Big 12 first team as a Junior and Senior, despite playing for teams with losing records in both seasons. Recorded 117 tackles during his senior season at Oklahoma in 1998, including a Big 12-leading and still-standing sooner record of 24 tackles for loss. His 53 career tackles for loss still rank second all-time at Oklahoma. He also tallied nine sacks in 1998, which still ranks as the 5th best season by a Sooner. His 19 career sacks are seventh all-time for the sooners. He led the Sooners in tackles his final two seasons with 117 and 98, becoming the first defensive lineman to do so in 30 years. He majored in sociology.
Statistics
Professional career
Cincinnati Bengals
Gregg was drafted by the Cincinnati Bengals in the sixth round of the 1999 NFL Draft. He was waived by the team on September 6 and re-signed to the practice squad on September 8.
Gregg was signed to the practice squad of the Baltimore Ravens on September 13, 2000. He earned a Super Bowl ring when the Ravens, having an NFL record-setting defense, beat the New York Giants in Super Bowl XXXV. The following offseason, Gregg recorded six sacks in NFL Europe as a member of the Rhein Fire. He contributed more as an active member of the roster in 2001, and the following year, after the loss of many veteran members of the 2000 Super Bowl winning defense, including nose tackle Tony Siragusa, Gregg became the full-time starting nose-tackle for the Ravens in 2002. He maintained that starting role through the 2010 season. His first full year as a starter, he collected 56 tackles and two sacks. By the following season, he was already considered one of the toughest nose tackles in the league, and many Ravens fans began to refer to him as "Buddy Lee", after the brand of jeans, for his toughness against the run. 2003 was a standout season for him, as he produced 80 tackles and 2 sacks. in 2006. Over the following years, he helped maintain the Baltimore Ravens' reputation as a team with a top notch defense. He was a key part of several multi-game stretches of time where the Ravens defense did not allow a 100-yard rusher in a single game. Perhaps the best stretch of his career, was in 2006 and 2007. In 2006, he was a big part of the Ravens #1 ranked defense, and had a career-high 3.5 sacks. In 2007, he also notched a career-high 83 tackles, as well as 3 sacks. Gregg was placed on season-ending injured reserve on October 8, 2008 after he underwent microfracture surgery on his left knee. The team signed defensive tackleBrandon McKinney to replace him on the roster. Gregg returned in 2009 and put in a strong year with 63 tackles and 3 sacks. In the 2010 season, he remained the starter, but split playing time with rookie Terrence Cody. He still recorded 34 tackles. Gregg was released on July 28, 2011, due to salary cap constraints. While never voted to a Pro Bowl in his ten years as a Baltimore Raven, he was often considered one of the most effective nose tackles—and one of the most underrated players—in the league. In 10 years as a Raven, he notched over 500 tackles, and 19.5 sacks, and 27 post-season tackles. He was certainly one of the greatest Baltimore Ravens players, and helped continue a legacy of defensive greatness for the franchise.
