The Indianapolis Colts lead the Tennessee Titans 17-10 at halftime in the race for the AFC’s final playoff spot.Andrew Luck has thrown for 196 yards and two touchdowns compared to Blaine Gabbert who has 73 yards passing for the Titans. The Colts are outgaining Tennessee 253-97 in total offense.Adam Vinatieri http://www.losangelesramsteamonline.com/darrell-henderson-jersey , the NFL’s oldest active player who just turned 46 on Friday, kicked a 53-yard field goal with 39 seconds left in the first half to give the Colts a 17-7 lead.Vinatieri is 4 of 6 from 50 yards or longer this season.Gabbert drove the Titans 55 yards for a 38-yard field goal by Ryan Succop as the first half ended to trim the Colts’ lead.The Colts were cruising up 14-0 when the Titans got just enough pressure on Luck for linebacker Jayon Brown to pick off a pass and return it 22 yards for a touchdown.Brown also stripped Marlon Mack of the ball with the Colts inside the Tennessee 20.— Teresa M. Walker reporting from Nashville, Tennessee. KANSAS CITY CHIEFS (13-5)UNRESTRICTED FREE AGENTS: OLB Dee Ford (franchise tag), OLB Justin Houston, DT Allen Bailey, TE Demetrius Harris http://www.minnesotavikingsteamonline.com/irv-smith-jr.-jersey , FB Anthony Sherman, RB Spencer Ware, CB Orlando Scandrick, C Mitch Morse, OG Jordan Devey, WR De’Anthony Thomas http://www.newyorkgiantsteamonline.com/dexter-lawrence-jersey , OG Jeff Allen, OLB Frank Zombo, RB Charcandrick West, WR Chris Conley, CB Steven Nelson, WR Kelvin Benjamin http://www.oaklandraidersteamonline.com/josh-jacobs-jersey , FS Ron Parker.RESTRICTED FREE AGENTS: SS Jordan Lucas, OLB Terrance Smith.NEEDS: Priority for Chiefs is fixing one of NFL’s worst defenses, especially with new coordinator Steve Spagnuolo’s switch from 3-4 to 4-3 system. Ford was franchised but club is trying to work out a long-term deal while listening to trade offers. Houston was released to create $14 million in salary cap space with two years left on his deal. Nelson could return but help is still needed at LB and in porous secondary, which was shredded by Tom Brady in overtime of AFC title game loss. At least newcomer S Tyrann Mathieu, who agreed to sign contract, will help.AVAILABLE SALARY CAP SPACE (approximately): $18 million Ben Banogu Jersey , but Chiefs could use some to extend WR Tyreek Hill and DT Chris Jones this offseason while being mindful QB Patrick Mahomes could be looking at extension next offseason.