The Denver Broncos announced several roster moves Thursday.

New quarterback Blake Bortles officially signed a one-year contract and was added to the 53-man roster. Defensive back P.J. Locke was promoted from the practice squad to the active roster as well. To fill Locke's former spot on the practice squad, the Broncos signed defensive lineman Deyon Sizer.

After adding Bortles and Locke, Denver still has two open spots on the 53-man roster. One of those spots is expected to go to defensive lineman DeShawn Williams, who is currently on the practice squad.

After adding Williams, the Broncos will still have...