By DAVID GINSBURG

AP Sports Writer

BALTIMORE — The undefeated Indianapolis Colts found yet another way to win a close game, their 19th straight victory.

The 17-15 win secured on former Ravens kicker Matt Stover's go-ahead field goal gave Indianapolis (10-0), the second-longest streak in NFL history behind a 21-game run by the New England Patriots (2006-08). Indy received an inspired performance from the defense and overcame an uncharacteristic three turnovers.

Much to the dismay of the Ravens and their fans, Stover booted the decisive field goal with 7:02 left. Colts linebacker Gary Brackett then intercepted Joe Flacco's pass at the Indianapolis 13 with 2:42 remaining, and the Colts kept the ball until the closing seconds.

Baltimore's last gasp ended when Ed Reed fumbled on a punt return with 17 seconds left.

Indianapolis has won its last four games by a combined 10 points. The Colts usually rely on Peyton Manning, who fashioned a huge comeback against New England last week, but the credit for this victory belonged to a defense that did not allow a touchdown.

Billy Cundiff made field goals of 46, 44, 38, 36 and 20 yards in his debut with Baltimore (5-5). But he also was wide right on a 30-yard attempt that would have given the Ravens a 15-14 lead in the third quarter.