Indianapolis Colts go on 21-point second-half run to topple Tennessee Titans

Indianapolis Colts running back Nyheim Hines, left, scored twice in Nashville (Ben Margot/AP)

The Indianapolis Colts mounted an impressive second-half comeback to beat the Tennessee Titans 34-17 and snatch top spot in their shared division.

The Titans were kings of the AFC South when they welcomed the Colts to Nashville on Thursday and had a four-point lead at the half.