By Chris Rosvoglou The Las Vegas Raiders have released offensive lineman Jackson Barton, according to NFL Network’s Tom Pelissero. Barton, a former seventh-round pick from the 2019 draft, was an All-Pac-12 offensive lineman at Utah. He started his NFL career with the Indianapolis Colts. In November of 2019, the Kansas City Chiefs signed Barton off the Colts’ practice squad. The New York Giants claimed Barton in September 2020 when the Chiefs placed him on waivers. He spent a full year with the G-Men. The Raiders then signed Barton during the first half of the 2021 season. He appeared in two ga…