Siliga, who was signed to the team's practice squad the day after the roster was cut down to 53 players, impressed during OTAs and minicamp. He notched six tackles and a sack in the preseason.
A first-year defensive tackle, Siliga spent time on Denver's practice squad as a rookie in 2011 after originally signing with the San Francisco 49ers as a college free agent.
Hanie completed 22 of his 39 passes during the preseason for 246 yards, a touchdown and an interception. He was signed as a free agent on March 25.