NOTES: WR Wes Welker, who suffered his second concussion in four games last Sunday, was included among the Broncos' inactive players Thursday night. Also inactive was CB Champ Bailey, who missed his 11th game this season because of a lingering foot injury. ... The Chargers started six different combinations on the offensive line in 14 games. ... Denver WR Andre Caldwell is the younger brother of former Chargers WR Reche Caldwell. ... San Diego WR Keenan Allen leads all NFL rookies with 63 catches. ... The Broncos scored on eight of 14 opening drives this season, tops in the NFL.