After losing quarterback Drew Lock to a shoulder injury, the Denver Broncos will likely consider looking at free agent quarterbacks available. Broncos general manager John Elway will also likely take a look at the quarterbacks on other teams' practice squads.

For now, here's what we know about the Broncos' QB depth chart: Jeff Driskel is the fill-in starter and Brett Rypien is the only backup.

Driskel was signed during free agency to serve as Lock's backup this season and he played relatively well against the Pittsburgh Steelers on Sunday....