This week's must-see NFL game

Kansas City Chiefs (3-0) at Los Angeles Chargers (2-1)

When: Sunday, 1:25 p.m.

TV: CBS

Why you don’t want to miss it: It’s a classic grudge match between two AFC West rivals. The Chiefs have dominated the series since Andy Reid took over as coach and Patrick Mahomes became Kansas City’s starting quarterback. Reid is 17-5 against the Chargers, Mahomes is 8-2, and although KC has won the past five meetings, three of the past four were decided by three points or fewer.

It’s the first time Jim Harbaugh will face the Chiefs since becoming the new head coach of the Chargers, and he brings a winning culture to the franchise, having posted a 142-52 record as a college head coach and a 54-23-1 record as an NFL head coach.

The Chiefs, winners of eight straight division titles, might be 3-0 this season but they’ve been spotty and have looked out of sync at times in all three games. Could the Chargers find a way to hand KC its first loss and create some doubts about the Chiefs’ pursuit of a Super Bowl three-peat?

The Chiefs are coming off a close 22-17 win over the Falcons in which Mahomes shook off his fourth interception of the season and the defense stopped Atlanta twice on fourth down in the closing minutes.

“I was a little out of rhythm, not making throws that I usually make,” Mahomes told reporters. “Got a little bit better in the second half but now all you can do is go back and practice. I think what I learned at least from last year is that it’s not always going to pay off like right now but if you continue to work at it, it will pay off in the long run.

“My hope is that it happens faster than it did last year but all you can do is get back to work at practice.”

This could be a historic game for Chiefs tight end Travis Kelce. Although he’s off to a very slow start with just eight receptions for 69 yards and no touchdowns, he needs just two catches to pass Hall of Famer Tony Gonzalez (916) for the most receptions in franchise history.

The Chiefs are 30-9 in September since Reid’s arrival in 2013 and although Chargers quarterback Justin Herbert is still dealing with an ankle injury, this game could end up being a lot closer than you think if Herbert can play.

Prediction: Chiefs 27, Chargers 24

This article originally appeared on Arizona Republic: This week's must-see NFL game