Clayborn, 6-3, 280 pounds, was originally selected by the Tampa Bay Buccaneers in the first round (20th overall) of the 2011 NFL Draft out of Iowa. He started all 36 games during his four year stay with the Bucs, tallying 109 total tackles (74 solo), 13 sacks, five forced fumbles, and two passes defensed.
The Falcons signed Clayborn during the offseason in 2015, and this past season Clayborn played in all 16 games for the first time since 2013. He also recorded 15 total tackles (14 solo), three sacks, and one fumble recovery.
The St. Louis, Missouri native was a two-time team captain that started in 37 of 50 games played, including his last 30 games during his Iowa career (2007-10).