But things have gone downhill since then, and his stay with the Broncos might be over, as NFL.com's Ian Rapoport reported that Denver is expected to entertain trade offers for Siemian.
The Broncos finished 9-7 in 2016, one year after winning the Super Bowl, and the Broncos were 5-5 with Siemian as the starter in 2017 before he was benched.
Siemian completed 59 percent of his passes in 2017, but threw more interceptions (14) than touchdown passes (12).
Trading Siemian would clear the way for the Broncos to acquire a starting quarterback that could help them become a Super Bowl contender again in 2018. They already have a quality defense.
The Broncos might get involved in the bidding for Kirk Cousins, who is expected to become a free agent next month.
The Broncos also have the fifth overall pick in the NFL Draft, which would allow them to obtain one of the several highly rated quarterback prospects available.
Siemian might not draw much in a trade, but he could be a backup for some team in need of one.