A key statistic, courtesy of ESPN Stats & Information, for each AFC West team heading into Week 12:
Quarterback Peyton Manning, 36, is on pace to have the most yards, touchdown passes and have the highest completion percentage of any quarterback 36 or older in NFL history.
The Chiefs are minus-21 in turnover margin. It is the worst margin of any NFL team through 10 games since the 1970 Buffalo Bills.
Carson Palmer has thrown an interception in each of the past six games. The last time he threw interceptions in seven straight games was in 2004 with the Bengals. The Raiders visit the Bengals on Sunday.
Tight end Antonio Gates is struggling. He is averaging just 39.4 receiving yards a game. It is the 16th highest among tight ends in the league.