McKinnon landed on the Cowboys' injured reserve list prior to his rookie campaign in 2016, so the 24-year-old out of Florida International has yet to play a down in the NFL. He'll look to catch on with another team in hopes of providing depth in the secondary.
Durant, a 31-year-old journeyman, appeared in 13 games with the Cowboys last year as he notched 37 tackles, one sack and three passes defensed. The veteran linebacker will likely fill a similar depth role once again in 2017, while the team was forced to release cornerback Jeremiah McKinnon as a result of Durant's addition to the defensive unit.
Lewis' trial could be done as early as Tuesday, but that would still force the 2017 third-round pick to miss the first couple days of training camp. Upon his return, the rookie will be competing for playing time at cornerback behind Anthony Brown and Orlando Scandrick.
Chancellor, who needed surgery on both of his ankles this offseason to address nagging bone spurs, was able to do a lot in spring practices, but that's not surprising as his procedures were never considered very serious. However, durability is starting to become a concern for the veteran safety who's missed at least two contests in each of the past three seasons while missing eleven total games across that span. In 12 outings last season, Chancellor racked up 86 tackles, eight PBUs, two interceptions and one forced fumble.
Nzeocha underwent a minor cleanup procedure in early June and was originally expected to be back in time for training camp, but it sounds as if that timetable may have been a little optimistic. Although it didn't help that the Cowboys are one of the first teams to open training camp on July 22, Nzeocha should still be back in action sooner rather than later.
Bucannon underwent ankle surgery in May to repair what head coach Bruce Arians termed a "lingering" concern, per Kevin Patra of NFL.com. The preceding is a reference to the first three DNPs of Bucannon's career last season due to a high-ankle sprain. When healthy, he doesn't have a problem racking up tackles, as evidenced by 6.4 per game through the first three years as a professional. However, he's otherwise mustered five sacks, four forced fumbles, four fumble recoveries and one interception for a touchdown in 45 career contests, so health is paramount to a successful IDP campaign.
Smith, who missed the entirety of the 2016 season as he recovered from a devastating knee injury, will partake in a rookie camp alongside this year's draft class prior to the official start of training camp next week. The Cowboys simply held meetings and physicals Wednesday, but the plan is for Smith to appear on the practice field Thursday before the veterans arrive Friday. Smith is expected to remain limited throughout training camp after an every-other-day schedule during OTAs, but his condition is improving as Week 1 approaches.
McKinley, who underwent shoulder surgery in early March, is not quite ready to make his debut in practice with the Falcons after being picked 26th overall in this year's draft. He's still on pace to be available for Week 1 of the regular season, but his chances of starting at outside linebacker right away could take a hit if the shoulder recovery keeps him sidelined until the latter stages of camp. In the meantime, Duke Riley, Josh Keyes and De'Vondre Campbell may see additional reps during McKinley's absence from practice.
Fowler was released shortly thereafter, but the 2015 first-rounder could still face further discipline as additional details likely await. The Jaguars' starting defensive end notched 32 tackles and four sacks in 16 games last season, and the team is scheduled to begin training camp next week.
Bryant is no stranger to violating the league's substance-abuse policy, having served a three-game suspension in 2016 as the result of a 2015 violation. The defensive end's off-field issues won't bode well for his chances at making the Lions' final roster, while he's appeared in just 36 games through four years in the league.