Broncos re-sign LB Brandon Marshall

On the Broncos’ opening day of voluntary workouts, the club got one of its defensive starters officially under contract. Linebacker Brandon Marshall re-signed with Denver on Monday, according to the NFL’s transactions. The 25-year-old Marshall was an exclusive-rights free agent. Marshall had a breakout 2014 season, recording 113 tackles (91 solo) in 14 games (13…