The Indianapolis Colts have barely avoided an upset to remain the National Football League's only undefeated team. Indianapolis edged the visiting Buffalo Bills Sunday, 17-16.

Indianapolis moves its record to 9-0 with seven regular season games to play.

The Baltimore Ravens also avoided an unexpected defeat, blocking a late field goal attempt to beat the Tennessee Titans, 27-26. The Ravens came back from a 19-point deficit to win their seventh game of the season.

Chicago came from behind to roll over the host New York Giants 38-20, improving the Bears' record to 8-1. Chicago's Devin Hester matched an NFL record with a 108-yard touchdown run on a missed field goal return in the fourth quarter. Quarterback Rex Grossman led the Bears with three touchdown passes.

The San Diego Chargers erased a 21-point first quarter deficit to defeat the Cincinnati Bengals, 49-41. Chargers running back LaDainian Tomlinson scored four touchdowns while Bengals quarterback Carson Palmer completed 31 of 42 pass attempts for 440 yards and three touchdowns.

Elsewhere in the NFL Sunday:

The New York Jets edged the host New England Patriots, 17-14. The Houston Texans topped the Jacksonville Jaguars, 13-10. The Cleveland Browns beat the Atlanta Falcons, 17-13. The Pittsburgh Steelers prevailed in a 38-31 thriller over the New Orleans Saints.

Miami Dolphins 13, Kansas City Chiefs 10;

Philadelphia Eagles 27, Washington Redskins 3;

San Francisco 49ers 19, Detroit Lions 13;

Green Bay Packers 23, Minnesota Vikings 17;

Dallas Cowboys 27, Arizona Cardinals 10;

Seattle Seahawks 24, St. Louis Rams 22;

Denver Broncos 17, Oakland Raiders 13.

The Carolina Panthers host the Tampa Bay Buccaneers in the weekly Monday night contest.

Some information for this report provided by AP, AFP and Reuters.