Carolina Panthers agree on one-year, $2.6M deal with one-time Pro Bowl LB Cory Littleton from Victor Barbosa, with YardBarker.com/www.yardbarker.com The Carolina Panthers announced a free agency signing on Sunday night that they hope will boost their linebacking group in 2022. Cory Littleton played the first four seasons of his career with the Los Angeles Rams from 2016 to 2019, appearing in every one of the team’s 64 regular season games and starting 37 of them. His best season came in 2018, when he set career-highs in passes defended (13), tackles for loss (nine), sacks (4.0) and interceptions (three), while making…