Adrian Clayborn was born on July 6, 1988 in St. Louis, MO and attended nearby Webster Groves (MO) High School. As a redshirt freshman at the University of Iowa, he appeared in 12 games as a backup defensive end. He finished the year with 20 tackles, 2.5 tackles for loss, two sacks, a pass breakup, one forced fumble and a blocked field goal. As a sophomore, he assumed the starting right defensive end spot, starting 11 of 13 games. He finished the year with 50 tackles, eight for loss, two sacks, three pass breakups and a forced fumble. As a junior, he started all 13 games at right defensive end, tallying 70 tackles, 20 tackles for loss, 11.5 sacks, two pass breakups, four forced fumbles, a fumble recovery, and blocked one punt which he returned 53 yards for a touchdown. He earned first team All-Big Ten honors that year. He would follow that up with a senior year where he started all 13 games at right defensive end recorded 52 tackles, seven tackles for loss, 3.5 sacks, one pass breakup, one forced fumble and a blocked field goal. He would once again earn first team All-Big Ten honors, but would also add third-team All-American honors and was a finalist for the Ted Hendricks Award (top defensive end) and Lombardi Award (top lineman/linebacker) as a senior. He was originally selected by the Tampa Bay Buccaneers in the first round (20th overall) of the 2011 NFL Draft.
Signed by Tampa Bay Buccaneers on July 27, 2011 ... Placed on injured reserve by Bucs with torn right ACL on September 24, 2012 ... Placed on injured reserve by Bucs with elbow injury on September 12, 2014 ... Signed by Atlanta Falcons on March 12, 2015 ... Re-signed by Falcons on March 9, 2016 ... Placed on injured reserve by Falcons on January 17, 2017 with a biceps injury.
2015: He signed a one-year deal worth $3 million with the Falcons in 2015. His deal included a $750,000 signing bonus. His 2015 base salary will be $1 million. He also will receive a $250,000 roster bonus if he's on the team Week 1 during the regular season and has per-game active roster bonuses of $62,500 as well, worth up to $1 million. He will count only $2,062,500 against the Falcons' 2015 salary cap since he only appeared in one game in 2014 ... 2016: Signed a two-year deal with Falcons worth $8.5 million that includes a $2.5 million signing bonus. He will receive base salaries of $1.75 million (2016) and $3.75 million (2017). He is also due a $500,000 roster bonus in 2017. That gives him cap hits of: $3 million (2016) and $5.5 million (2017).