The Kansas City Chiefs will take a six-game winning streak in the series versus the visiting Los Angeles Chargers into a Sunday night matchup.Wins aside, the aura of invincibility surrounding the two-time defending champions, however, continues to fade.The Chiefs enter the Week 14 matchup with an impressive 11-1 record. However, in their four victories over their past five games, one win came in overtime and three others came by three points or fewer.The latest close call came last Friday when Kansas City held on for a 19-17 home victory over the Las Vegas Raiders. The Chiefs finally sealed the victory when the Raiders botched a snap in shotgun formation with 15 seconds remaining while already in field-goal range.Yet even as it seems like the rest of the league is starting to catch up to the Chiefs, they do know how to finish off tight games. They are 9-0 this season in games decided by one possession.Three times this season the Chiefs have scored fewer than 20 points, and they won each contest.”The hope is that with all of these close finishes, we’re getting wins but it’s keeping us hungry so that we can try to continue to get better as the season goes on,” quarterback Patrick Mahomes said.Close games are reason for concern with the Chiefs, who are on their third kicker. With Harrison Butker down and Spencer Shrader going on injured reserve this week, Matthew Wright was signed from the practice squad after he made 4 of 5 kicks against the Raiders.”Wright will go this weekend and if he just keeps doing what he has been doing, he has done a nice job for us,” Kansas City head coach Andy Reid said.Mahomes still threw for 306 yards and a touchdown against the Raiders, while tight end Travis Kelce had a team-best seven receptions. But the Raiders had 434 yards of total offense to 329 for the Chiefs, and Mahomes was sacked five times for minus-40 yards.The Chargers hope they can lean into a defense that enters the week tied for sixth in the NFL with 36 sacks. Los Angeles (8-4) has plenty of momentum with five victories in its last six games, while allowing fewer than 20 points in four of those five wins.The Chargers have the best defense in the NFL when it comes to opponents’ points, allowing an average of 15.7. The Chiefs are eighth with 19.6 points allowed.