Johnson (6-2, 293), along with over 20 other rookies, will report to Valley Ranch on Thursday for the Cowboys first mini-camp.
"I was really down most of the day because I really thought I would go in the later rounds," Johnson told GoBlueRaiders.com. "When I finally heard the phone ring, my heart was pounding and I almost lost my breath. It was exciting and I can't wait to get started and prove myself."
Johnson recorded 47 tackles, including 8.5 for loss and four sacks last season for the Blue Raiders.
Cowboys Sign Thomas Johnson
CowboysHQ Top Stories
Cowboys 1st+10: Last Call for Draft PrepIn this edition of 1st and 10 I make some draft predictions, Fish has premium stuff on Dak Prescott and this week's Headline Porn really makes no sense
CowboysHQYesterday at 6:25 PM
Dallas Cowboys' 2017 Schedule AnalysisThe 2017 Dallas Cowboys schedule is out and we break it down here at CowboysHQ.com.
CowboysHQThursday at 7:15 PM
Cowboys Dez Bryant On Race? Let's Just ListenIf you follow the Dallas Cowboys via CowboysHQ.com or on 105.3 The Fan, you no doubt know of the interesting dynamic that exists between our Mike Fisher and Pro Bowl receiver Dez…
CowboysHQWednesday at 12:43 PM
Cowboys 7-Round Mock 4.0: A Big D Visit SlantIn this Dallas Cowboys 7-Round Mock 4.0, I find myself gravitating toward players that have visited The Star in the past few weeks
CowboysHQWednesday at 5:12 AM
Cowboys + DE Derek Barnett: What If He Slips?The Dallas Cowboys And Derek Barnett: What If He Falls In NFL Draft? Profiling A Possible Connection ...
CowboysHQTuesday at 4:28 PM