Bailey (ankle) reached an injury settlement with the Chargers on Friday, Michael Gehlken of the San Diego Union-Tribune reports.
Bailey signed with the Chargers in early-August, but didn't see a minute of preseason action. The agreement removes him from the team's injured reserve list, leaving him free to sign with another team.
Keo resigned with the Broncos on Tuesday, Mike Klis of 9News.com reports.
Keo rejoins the team just a few days after they parted ways. The safety was suspended for the first two weeks of the season but is now able to take the field again. He'll compete with rookies Justin Simmons and Will Parks for a backup safety position.