Harris, 25, was a first-round pick in the 2017 NFL Draft and was linked to the Falcons throughout the pre-draft process. During his three-year NFL career, Harris has played in 41 games and made eight starts. In that time, he has recorded 61 tackles, 23 quarterback hits, 10 tackles for a loss and 3.5 sacks.
The 6-foot-3, 252-pound defensive end was considered one of the top prospects coming out of college in 2017. Harris improved in each of his three seasons at Missouri and ended his college career with 136 tackles, 34.5 tackles for a loss, 18 sacks and five forced fumbles.
The Falcons, who declined to pick up Takk McKinley's fifth-year option earlier this week, have made a couple of moves this offseason to bolster their pass rush, which ranked 29th in the NFL last season with 28 sacks. Atlanta signed former first-round pick Dante Fowler, who is coming off a career-best 11.5-sack season, and drafted former Auburn defensive lineman Marlon Davidson. With Harris now in the fold, the Falcons have plenty of high draft picks for coaches Jess Simpson and Tosh Lupoi to work with on the defensive line.