This will officially open a three-week window of time for Lock to practice with the team before Denver will need to add him to their active roster.
Lock, 22, was selected with the No. 42 overall pick in the second round of this year’s draft by the Broncos out of Missouri. He agreed to a four-year, $7,010,820 rookie contract including a $3,118,776 signing bonus.
The Broncos placed Lock on injured reserve coming out of the preseason with a thumb injury.
During his four-year college career at Missouri, Lock threw for 12,193 yards, 99 touchdowns and 39 interceptions. He also added 437 yards rushing and nine touchdowns.