The Arizona Cardinals have released two veterans from their roster as NFL free agency approaches.

Mike Glennon was signed to a two-year $8 million contract last season. He was the third-string quarterback but was promoted as Josh Rosen's primary backup quarterback after Sam Bradford's release. He played in two games, completing 71 percent of his passes for 171 yards and a touchdown. Though the Cardinals save $1 million in cap space with his release, they will also endure $3 million in dead money.

With the hiring of Kliff Kingsbury, he wants to create a new identity for this offense, and the release of Glennon should come as no surprise.

The 34-year-old safety Antoine Bethea was one of the leaders of the Arizona Cardinals' defense for the past two seasons. In 2017, he set a career-high in interceptions (5). Although he regressed last season, he still finished with 121 tackles and three sacks. With his release, the Cardinals save $4.75 million in cap space. The Cardinals want to get younger and faster on defense, having D.J. Swearinger and Budda Baker already in place as their primary safeties.

Despite his age, Bethea continues to play at a high level and is one of the more well-respected players in the NFL. He will definitely draw interest from NFL teams that need a veteran. His 1,224 career tackles, 24 interceptions, and 74 passes defended is an impressive resume.

Their release happens after the Cardinals have agreed to a deal with the Pittsburgh Steelers to acquire offensive tackle Marcus Gilbert for a sixth-round pick. The acquisition of Gilbert will cost the Cardinals around $6.7 million in cap space.